WO2016127412A1 - Pbch重复传输的方法及基站 - Google Patents
Pbch重复传输的方法及基站 Download PDFInfo
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- WO2016127412A1 WO2016127412A1 PCT/CN2015/073067 CN2015073067W WO2016127412A1 WO 2016127412 A1 WO2016127412 A1 WO 2016127412A1 CN 2015073067 W CN2015073067 W CN 2015073067W WO 2016127412 A1 WO2016127412 A1 WO 2016127412A1
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- resource elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
Definitions
- the present invention relates to the field of communications, and in particular, to a method and a base station for PBCH repeated transmission.
- LTE Long Term Evolution
- MTC machine type communication
- the coverage of the LTE network needs to be enhanced (such as an additional 20dB, or 15dB) to ensure that it is in the basement.
- the user equipment (User Equipment, UE for short) with poor channel quality can communicate with the base station reliably.
- a master information block is carried in a physical broadcast channel (PBCH) for transmitting a system through a PBCH channel.
- PBCH physical broadcast channel
- Basic information required such as downlink system bandwidth, system frame number, information on the number of antennas, etc., the UE obtains the MIB by detecting the PBCH.
- the subframe 0 in each radio frame has a PBCH transmission.
- the MIB contents of the PBCH transmission in consecutive four radio frames starting with the radio frame in which the system frame number (SFN) is a multiple of 4 are the same.
- the above PBCH in the existing LTE or LTE-A system is referred to as a normal PBCH in this application.
- enhanced transmission of the MIB is needed to improve the transmission reliability of the information, and the enhanced transmission can be realized by repeated transmission, which is referred to as PBCH repeated transmission in this application.
- a channel state information reference signal can be used for measurement of channel state by an LTE or LTE-A UE.
- the base station gives normal or legacy through proprietary signaling.
- the UE performs CSI-RS configuration and CSI-RS subframe configuration, so that the normal UE knows which subframes have CSI-RS, and also knows the configuration of the CSI-RS.
- the UE that receives the repeatedly transmitted PBCH is referred to as the first UE in this application, and does not know that the base station is a CSI-RS and a CSI-RS subframe configured for the normal UE.
- the technology does not address how the CSI-RS performs repeated transmission of the PBCH.
- the first UE may also be a new category UE, a new type of UE, a UE with delay tolerance characteristics, or a UE with MTC service.
- An object of the present invention is to provide a PBCH retransmission method and a base station , so that a UE that receives a MIB repeated transmission does not know that the base station is a CSI-RS and a CSI-RS subframe configured by a normal UE, and needs to receive a repetition.
- the normal UE can also receive the CSI-RS.
- an embodiment of the present invention provides a method for repeatedly transmitting a physical broadcast channel PBCH, where the method includes:
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, where k is an index of the frequency domain subcarrier, and l is an index of the orthogonal frequency division multiplexing OFDM symbol, (k, l) Determine the frequency and time position of the resource elements, k, l are variables.
- the value of k, l of the resource element (k, l) is equal to all values or partial values of k, l calculated by any one of the following methods. :
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the number of configured CSI-RS or the number of CSI-RS antenna ports.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4;
- the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the configured CSI-RS; or, the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4, CSI reference signal configuration 0, 5
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is the CSI-RS configured by the CSI reference signal configuration 0 when the configured number of CSI-RSs or the number of CSI-RS antenna ports is 8. Occupied resource element;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3 when the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0, where the subframe 0 is used for repeated transmission of the PBCH.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0 and a subframe 5, where the subframe 0 and the subframe 5 are Refers to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element set (k, l) in the subframe 0, and the repeatedly transmitted PBCH mapping does not occupy the resource elements in the subframe 5 (k , P ⁇ 6 resource elements in l), the repeated transmission PBCH mapping does not occupy min(Q, 24) ⁇ 6 in resource elements (ka, la) in the second time slot in subframe 5.
- the resource element set (ka, la) in the second time slot of one subframe is determined by any one of the following methods, where ka is an index of a frequency domain subcarrier, and la is an index of an OFDM symbol:
- the resource element (ka, la) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 1, 2, 3, 6, 7, 8, 12, 13 , 14, 15, 16, 17 resource elements occupied by the CSI-RS configured; or, (ka, la) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2, the CSI reference signals are configured 1, 2, 3, 6, Resource elements occupied by CSI-RS configured by 7, 8, 12, 13, 14, 15, 16, 17; or, resource elements (ka, la) are the number of CSI-RSs configured or the number of CSI-RS antenna ports When it is 4, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 1, 2, 3, 6, 7, and 8; or, the resource element (ka, la) is the number of CSI-RSs configured or CSI- When the number of RS antenna ports is 8, the CSI reference signal configures the resource elements occupied by the CSI-RSs configured by 1, 2, and 3.
- the resource element (ka, la) is the CSI reference signal configuration 16, 17, 18, 19, 20, 21, 22, 23 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1. , 24, 25, 26, 27 configured resource elements occupied by CSI-RS; or, (ka, la) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 16 , 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 configured resource elements occupied by CSI-RS; or, resource elements (ka, la) are the number of CSI-RSs configured Or when the number of CSI-RS antenna ports is 4, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 16, 17, 18, 19, 20, 21; or, the above resource elements (ka, la) are configured When the number of CSI-RSs or the number of CSI-RS antenna ports is 8, the CSI reference signal configures the resource elements occupied by the CSI-RSs configured by 16, 17, and 18.
- the subframe 0 and the subframe 5 adopt a normal cyclic prefix; the mapping of the repeatedly transmitted PBCH does not occupy the subframe 5 Min(R, 24) ⁇ 6 resource elements in the resource element (kb, lb) in the second time slot, where min is the minimum function and R is an even integer;
- the resource element set (kb, lb) in the second time slot of one subframe is determined by any one of the following methods, where kb is an index of a frequency domain subcarrier, and lb is an index of an OFDM symbol:
- the resource element (kb, lb) is a CSI reference signal configuration 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1.
- the resource element occupied by the CSI-RS configured by 30, 31; or (kb, lb) is the CSI reference signal configuration 20, 21, 22 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource elements occupied by the CSI-RS configured by 23, 24, 25, 26, 27, 28, 29, 30, 31; or, the resource elements (kb, lb) are the number of CSI-RSs configured or CSI-RS antennas
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 20, 21, 22, 23, 24, 25; or, the above resource elements (kb, lb) are the number of CSI-RSs configured.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 20, 21, and 22.
- the value of the L, P, Q, R is a value of a predetermined value or a signaling configuration.
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 are normal.
- a cyclic prefix the subframe 0 and the subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element set (k, l) in the subframe 0, the resource element set (k, l) in the non-occupied subframe 5, and the second of the non-occupied subframe 5.
- the PBCH is divided by the resource element (k total , l total ) in the first slot of the subframe 5 and the resource element (k total , l total ) in the second slot, the resource element (k, l), the resource Element (ka, la), resource element (kb, lb), resource element used for normal PBCH transmission, resource element for primary synchronization signal and secondary synchronization signal transmission, and resource element other than resource element used for common reference signal transmission Mapping.
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5, and the sub-frame Frame 0 and subframe 5 adopt a normal cyclic prefix, and the subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0 and the resource element (k, l) in the subframe 5;
- the resource element used for mapping the PBCH in the subframe 5 is the same as the resource element used in the normal PBCH mapping in the subframe 0;
- the resource element used for mapping the PBCH of the PBCH repeated transmission in the subframe 5 is the same as the resource element used for the repeated PBCH mapping or transmission in the subframe 0, and the other PBCH is repeated.
- the resource element used for mapping the transmitted PBCH in subframe 5 is the same as the resource element used for normal PBCH mapping in subframe 0.
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element in the subframe 0 (k, l) not occupying resource elements (k, l) in subframe 5, and not occupying 48 resource elements in resource elements (ka, la) in the second slot in subframe 5;
- the repeatedly transmitted PBCH is repeatedly transmitted once in the subframe 0, the repeatedly transmitted PBCH is repeated once in the subframe 0 and the subframe 5, and the repeatedly transmitted PBCH is repeated once in the subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the second time slot in the subframe 5. All resource elements in the resource element (ka, la) within;
- the repeatedly transmitted PBCH is repeatedly transmitted once in the subframe 0, and is repeatedly transmitted once in the subframe 5;
- the repeated transmission of the PBCH within a first frame slot 0 of the resource elements (k total, l total) in the sub-slot and the second resource elements (k total, l total) in addition to the normal transmission used PBCH The resource element, the resource element used for the primary synchronization signal and the secondary synchronization signal transmission, and the resource element other than the resource element used for the common reference signal transmission; and the repeatedly transmitted PBCH is in the first time slot of the subframe 5.
- the main The resource elements used for the synchronization signal and the secondary synchronization signal are mapped on the resource elements other than the resource elements used for the common reference signal transmission.
- the mapping of the repeatedly transmitted PBCH does not occupy the second time slot in the subframe 5.
- mapping of the repeatedly transmitted PBCH does not occupy 96 mappings of resource elements (ka, la) in the second slot in subframe 5 and the mapping of the repeatedly transmitted PBCH does not occupy the subframe 5 Resource element (k,l); or,
- the resource elements used for PBCH transmission, the resource elements used for the transmission of the primary synchronization signal and the secondary synchronization signal, and the resource elements other than the resource elements used for the common reference signal transmission are mapped.
- Resource elements used, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission resource elements other than resource elements used for common reference signal transmission
- the resource element used for normal PBCH transmission, the resource element used for transmission of the primary synchronization signal and the secondary synchronization signal, and the resource element other than the resource element used for common reference signal transmission are mapped.
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element in the subframe 0 (k , l), the resource element (k, l) in the subframe 5, and the resource element (ka, la) in the second slot in the subframe 5;
- the system in the method is a time division duplex system, and the repeatedly transmitted PBCH is Repeated transmission is performed in subframe 0 and in subframe 5, and subframe 0 and subframe 5 adopt a normal cyclic prefix;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, the resource element (k, l) in the subframe 5, and the resource element in the second slot in the subframe 5. (ka, la), resource elements (kb, lb) in the second time slot in subframe 5;
- the resource elements used for the synchronization signal and the secondary synchronization signal are mapped on the resource elements other than the resource elements used for the common reference signal transmission.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0, and the subframe 0 adopts an extended cyclic prefix;
- the mapping of the repeatedly transmitted PBCH does not occupy N resource elements in the resource element (k, l) in subframe 0, and N is a multiple of 12; in particular, the PBCH does not occupy the first of subframe 0 N/2 resource elements on each of symbols 4 and 5 in the time slot or in the second time slot.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0 and/or a subframe 5, where the subframe 0 and / or subframe 5 using an extended cyclic prefix;
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element (k, l) in subframe 0, and P ⁇ 6 resources in the resource element (k, l) in subframe 5 Element, second in subframe 5 Min(Q, 24) ⁇ 6 resource elements in resource elements (ka, la) in time slots, min is a minimum function, where L, P, Q are even numbers.
- the repeatedly transmitted PBCH is repeated in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 are extended.
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element (k, l) in the subframe 0, and the PBCH mapping or transmission of the repeated transmission does not occupy the resource element in the subframe 5 (k) P ⁇ 6 resource elements in l).
- L, P is an even number, and L and P may be the same or different;
- the resource element (k total , l total ) in the first time slot and the resource element (k total , l total ) in the second time slot L ⁇ 6 in the resource element (k, l) in subframe 0 Resource elements, P ⁇ 6 resource elements in resource elements (k, l) in subframe 5, resource elements used for normal PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, and common reference signal transmission
- the resource element is mapped on the resource element outside the resource element.
- the system is a time division duplex system, and the repeatedly transmitted PBCH is performed in a subframe 0 and a subframe 5 Repeat transmission, subframe 0 and subframe 5 adopt extended cyclic prefix;
- an embodiment of the present invention provides a base station, where the base station includes a sending unit, a receiving unit, and a control unit.
- the transmitting unit is configured to repeatedly transmit the PBCH;
- the control unit is configured to control the sending unit to map the repeatedly transmitted PBCH in the subframe 0 and/or the subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, where k is an index of the frequency domain subcarrier, and l is an index of the orthogonal frequency division multiplexing OFDM symbol, (k, l) Identify resources
- the frequency and time position of the element, k, l are variables.
- the value of k, l of the resource element (k, l) is equal to all values or partial values of k, l calculated by any one of the following methods. :
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the number of configured CSI-RS or the number of CSI-RS antenna ports.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4;
- the resource element determined by (k, l) is the configured CSI-RS.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 5, 10, 11; or, the resource element determined by (k, l) is the configured CSI - when the number of RSs or the number of CSI-RS antenna ports is 2, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 5, 10, 11; or, the resource element determined by (k, l) is configured
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 5; or, the resource element determined by (k, l) is the configured CSI
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3 when the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0, where the subframe 0 refers to a subframe 0 in a radio frame for PBCH repeated transmission;
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5, where the subframe 0 and the subframe 5 are Refers to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element set (k, l) in the subframe 0, and the repeatedly transmitted PBCH mapping does not occupy the resource elements in the subframe 5 (k , P ⁇ 6 resource elements in l), the repeated transmission PBCH mapping does not occupy min(Q, 24) ⁇ 6 in resource elements (ka, la) in the second time slot in subframe 5.
- the resource element set (ka, la) in the second time slot of one subframe is determined by any one of the following methods, where ka is an index of a frequency domain subcarrier, and la is an index of an OFDM symbol:
- the resource element (ka, la) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 1, 2, 3, 6, 7, 8, 12, 13 , the resource element occupied by the CSI-RS configured by 14, 15, 16, 17; or, (ka, la) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 1 , 2,3,6,7,8,12,13,14,15,16,17 configured resource elements occupied by CSI-RS; or, resource elements (ka, la) are the number of CSI-RSs configured Or when the number of CSI-RS antenna ports is 4, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 1, 2, 3, 6, 7, 8; or, the resource elements (ka, la) are configured.
- the CSI reference signal configures the resource elements occupied by the CSI-RSs configured by 1, 2,
- the resource element (ka, la) is the CSI reference signal configuration 16, 17, 18, 19, 20, 21, 22, 23 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1. , 24, 25, 26, 27 configured resource elements occupied by CSI-RS; or, (ka, la) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 16 , 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 configured resource elements occupied by CSI-RS; or, resource elements (ka, la) are the number of CSI-RSs configured Or when the number of CSI-RS antenna ports is 4, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 16, 17, 18, 19, 20, 21; or, the above resource elements (ka, la) are configured When the number of CSI-RSs or the number of CSI-RS antenna ports is 8, the CSI reference signal configures the resource elements occupied by the CSI-RSs configured by 16, 17, and 18.
- the subframe 0 and the subframe 5 adopt a normal cyclic prefix; and the mapping of the repeatedly transmitted PBCH is not yet Min(R, 24) ⁇ 6 resource elements in resource elements (kb, lb) in the second time slot in subframe 5, where min is a minimum function and R is an even integer;
- the resource element set (kb, lb) in the second time slot of one subframe is determined by any one of the following methods, where kb is an index of a frequency domain subcarrier, and lb is an index of an OFDM symbol:
- the resource element (kb, lb) is a CSI reference signal configuration 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1.
- the resource element occupied by the CSI-RS configured by 30, 31; or (kb, lb) is the CSI reference signal configuration 20, 21, 22 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource elements occupied by the CSI-RS configured by 23, 24, 25, 26, 27, 28, 29, 30, 31; or, the resource elements (kb, lb) are the number of CSI-RSs configured or CSI-RS antennas
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 20, 21, 22, 23, 24, 25; or, the above resource elements (kb, lb) are the number of CSI-RSs configured.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 20, 21, and 22.
- the value of the L, P, Q, R is a value of a predetermined value or a signaling configuration.
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 are normal.
- a cyclic prefix the subframe 0 and the subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element set (k, l) in the subframe 0, the resource element set (k, l) in the non-occupied subframe 5, and the second of the non-occupied subframe 5.
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5, Frame 0 and subframe 5 adopt a normal cyclic prefix, and the subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0 and the resource element (k, l) in the subframe 5;
- the resource element used for mapping the PBCH in the subframe 5 is the same as the resource element used in the normal PBCH mapping in the subframe 0;
- the resource element used for mapping the PBCH of the PBCH repeated transmission in the subframe 5 is the same as the resource element used for the repeated PBCH mapping or transmission in the subframe 0, and the other PBCH is repeated.
- the resource element used for mapping the transmitted PBCH in subframe 5 is the same as the resource element used for normal PBCH mapping in subframe 0.
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element in the subframe 0 (k, l) not occupying resource elements (k, l) in subframe 5, and not occupying 48 resource elements in resource elements (ka, la) in the second slot in subframe 5;
- the repeatedly transmitted PBCH is repeatedly transmitted once in subframe 0, and the repeatedly transmitted PBCH Repeating once in subframe 0 and subframe 5, the repeatedly transmitted PBCH is repeated once in subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the second time slot in the subframe 5. All resource elements in the resource element (ka, la) within;
- the repeatedly transmitted PBCH is repeatedly transmitted once in the subframe 0, and is repeatedly transmitted once in the subframe 5;
- the repeated transmission of the PBCH within a first frame slot 0 of the resource elements (k total, l total) in the sub-slot and the second resource elements (k total, l total) in addition to the normal transmission used PBCH The resource element, the resource element used for the primary synchronization signal and the secondary synchronization signal transmission, and the resource element other than the resource element used for the common reference signal transmission; and the repeatedly transmitted PBCH is in the first time slot of the subframe 5.
- the main The resource elements used for the synchronization signal and the secondary synchronization signal are mapped on the resource elements other than the resource elements used for the common reference signal transmission.
- the mapping of the repeatedly transmitted PBCH does not occupy the second one of the subframes 5 96 resource elements in the resource element (ka, la) within the slot and resource elements (k, l) in subframe 0; or,
- mapping of the repeatedly transmitted PBCH does not occupy 96 mappings of resource elements (ka, la) in the second slot in subframe 5 and the mapping of the repeatedly transmitted PBCH does not occupy the subframe 5 Resource element (k,l); or,
- the resource elements used for PBCH transmission, the resource elements used for the transmission of the primary synchronization signal and the secondary synchronization signal, and the resource elements other than the resource elements used for the common reference signal transmission are mapped.
- Resource elements used, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission resource elements other than resource elements used for common reference signal transmission
- the resource element used for normal PBCH transmission, the resource element used for transmission of the primary synchronization signal and the secondary synchronization signal, and the resource element other than the resource element used for common reference signal transmission are mapped.
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element in the subframe 0 (k , l), the resource element (k, l) in the subframe 5, and the resource element (ka, la) in the second slot in the subframe 5;
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and the subframe 5.
- subframe 0 and subframe 5 adopt a normal cyclic prefix
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, the resource element (k, l) in the subframe 5, and the resource element in the second slot in the subframe 5. (ka, la), resource elements (kb, lb) in the second time slot in subframe 5;
- the resource elements used for the synchronization signal and the secondary synchronization signal are mapped on the resource elements other than the resource elements used for the common reference signal transmission.
- the repeatedly transmitted PBCH is repeatedly transmitted in a subframe 0, and the subframe 0 is an extended cyclic prefix;
- the mapping of the repeatedly transmitted PBCH does not occupy N resource elements in the resource element (k, l) in subframe 0, and N is a multiple of 12; in particular, the PBCH does not occupy the first of subframe 0 Time N/2 resource elements on each of symbols 4 and 5 in the slot or within the second slot.
- the repeatedly transmitted PBCH is repeatedly transmitted in the subframe 0 and/or the subframe 5, where the subframe 0 and / or subframe 5 using an extended cyclic prefix;
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element (k, l) in subframe 0, and P ⁇ 6 resources in the resource element (k, l) in subframe 5 Element, min(Q, 24) ⁇ 6 resource elements in the resource element (ka, la) in the second slot in subframe 5, min is a minimum function, where L, P, Q are even numbers .
- the repeatedly transmitted PBCH is repeated in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 are extended.
- the mapping of the repeatedly transmitted PBCH does not occupy L ⁇ 6 resource elements in the resource element (k, l) in the subframe 0, and the PBCH mapping or transmission of the repeated transmission does not occupy the resource element in the subframe 5 (k) P ⁇ 6 resource elements in l).
- L, P is an even number, and L and P may be the same or different;
- the resource element (k total , l total ) in the first time slot and the resource element (k total , l total ) in the second time slot L ⁇ 6 in the resource element (k, l) in subframe 0 Resource elements, P ⁇ 6 resource elements in resource elements (k, l) in subframe 5, resource elements used for normal PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, and common reference signal transmission
- the resource element is mapped on the resource element outside the resource element.
- the system is a time division duplex system, and the repeatedly transmitted PBCH is performed in the subframe 0 and the subframe 5 Repeat transmission, subframe 0 and subframe 5 adopt extended cyclic prefix;
- an embodiment of the present invention provides a base station, where the base station includes a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory; wherein the memory stores a set of program codes, And the processor is used to call the program code stored in the memory to perform the following operations:
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, where k is an index of the frequency domain subcarrier, and l is an index of the orthogonal frequency division multiplexing OFDM symbol, (k, l) Determine the frequency and time position of the resource elements, k, l are variables.
- the value of k, l of the resource element (k, l) is equal to all values or partial values of k, l calculated by any one of the following methods. :
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the number of configured CSI-RS or the number of CSI-RS antenna ports.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4;
- the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the configured CSI-RS; or, the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4, CSI reference signal configuration 0, 5
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is the CSI-RS configured by the CSI reference signal configuration 0 when the configured number of CSI-RSs or the number of CSI-RS antenna ports is 8. Occupied resource element;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- a MIB repeated transmission within a physical broadcast channel (PBCH) upon determining the need for MIB is repeated transmission of the user equipment, wherein the PBCH mapping in subframe 0 and / or subframe 5
- the PBCH mapping does not occupy the resource element (k, l) in the subframe 0.
- the normal UE can also Receive CSI-RS.
- FIG. 1 is a schematic diagram of a resource element in an embodiment of the present invention.
- FIG. 2 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention
- 3 is a resource element mapping reference diagram in a method for repeatedly transmitting PBCH according to an embodiment of the present invention
- FIG. 4 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention
- FIG. 5 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present disclosure
- FIG. 6 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention
- FIG. 7 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 8 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 9 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 10 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention
- FIG. 11 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 12 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 13 is a resource element mapping reference diagram in a method for repeatedly transmitting PBCH according to an embodiment of the present invention
- 15 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- 17 is a resource element mapping reference diagram in a method for PBCH repeated transmission according to an embodiment of the present invention.
- FIG. 18 is a structural diagram of an embodiment of a base station according to an embodiment of the present invention.
- FIG. 19 is a structural diagram of another embodiment of a base station according to an embodiment of the present invention.
- time domain resources are divided into radio frames, and radio frames are numbered according to 0 to 1023.
- a radio frame consists of 10 subframes, the length of one subframe is 1 ms, and the subframes in each radio frame are numbered 0 to 9, each subframe contains two slots, the first slot and the second slot. Gap.
- the time slots in a radio frame are numbered 0 to 19, and are denoted as n s .
- CP Cyclic Prefix
- each slot contains 7 OFDM symbols numbered from 0 to 6; for an extended cyclic prefix, each slot contains 6 OFDM symbols numbered 0 to 5.
- a resource element (Resource Element, RE) is one subcarrier in an Orthogonal Frequency Division Multiplexing (OFDM) symbol, if the LTE system adopts a normal cyclic prefix.
- OFDM Orthogonal Frequency Division Multiplexing
- For a subframe one downlink resource block (RB) is composed of 12 consecutive subcarriers and 7 consecutive OFDM symbols; if the LTE system uses a subframe with extended cyclic prefix, one RB consists of 12 consecutive subcarriers and 6 consecutive bursts.
- the OFDM symbol is composed of 180 kHz in the frequency domain and a time length of one time slot in the time domain.
- the UE that needs to receive the repeatedly transmitted PBCH is referred to as a first UE in the present invention to distinguish it from a normal UE or a legacy UE. more specific,
- n s is the slot index.
- the resource element (k, l) within a subframe
- k is the index of the subcarrier
- l is the symbol
- the index, (k, l) determines the frequency and temporal location of the resource elements. Since k, l is a variable, the resource element (k, l) here contains multiple resource resources, that is, the resource element (k, l) can be regarded as a collection of resource elements.
- k takes a value equal to all or part of the value of k, l calculated by any of the following methods.
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the number of CSI-references (CSI-references) or CSI-
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the configured CSI-
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource elements determined by (k, l) are configured.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource elements determined by (k, l) are configured.
- the CSI reference signal configuration 4 is configured. Resource elements occupied by CSI-RS;
- the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the configured CSI-RS; or, the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4, CSI reference signal configuration 0, 5
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is the CSI-RS configured by the CSI reference signal configuration 0 when the configured number of CSI-RSs or the number of CSI-RS antenna ports is 8. Occupied resource element;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3 when the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -RS antenna end
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- k total , l total determines the frequency and temporal location of the resource elements. Since k total , l total is a variable, the resource element (k total , l total ) here contains multiple resource resources, that is, the resource element (k total , l total ) can be regarded as a resource element set.
- the value of k total and l total is equal to the value of k, l calculated by the following formula, and l' is a known integer in the formula.
- a resource element (ka, la) in the second time slot of one subframe is determined, ka is an index of the subcarrier, and la is an index of the symbol. (ka, la) determines the frequency and temporal location of the resource elements. Since ka, la is a variable, the resource element (ka, la) here contains multiple resource resources, that is, the resource element (ka, la) can be regarded as a resource element set. Where ka, la is equal to the value of ka, la calculated by the following formula:
- the resource element (ka, la) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 1, 2, 3, 6, 7, 8, 12 , the resource element occupied by the CSI-RS configured by 13, 14, 15, 16, 17; or, (ka, la) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element (ka, la) is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 1, 2, 3 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 8.
- the resource element (ka, la) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, the CSI reference signal configuration 16, 17, 18, 19, 20, 21, 22 , the resource element occupied by the CSI-RS configured by 23, 24, 25, 26, 27; or, (ka, la) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- Configure the resource elements occupied by the CSI-RS configured by 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27; or, the resource element (ka, la) is the CSI when configured.
- the CSI reference signal configures resource elements occupied by CSI-RSs configured by 16, 17, 18, 19, 20, 21; or, the above resource elements (ka, la) are When the number of configured CSI-RSs or the number of CSI-RS antenna ports is 8, the CSI reference signal configures the resource elements occupied by the CSI-RSs configured by 16, 17, 18.
- kb, lb is the index of the subcarrier
- lb is the index of the symbol. (kb, lb) determines the frequency and temporal location of the resource elements. Because kb, lb is a variable, the resource element (kb, lb) here contains multiple resource resources, that is, the resource element (kb, lb) can be regarded as a collection of resource elements. Where kb, lb takes a value equal to the kb, lb value calculated by the following formula:
- the resource element (kb, lb) is a CSI reference signal configuration 20, 21, 22, 23, 24, 25, 26 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1.
- the resource element occupied by the CSI-RS configured by 27, 28, 29, 30, 31; or (kb, lb) is the CSI reference signal when the number of configured CSI-RS or the number of CSI-RS antenna ports is 2.
- the source element (kb, lb) is a resource occupied by the CSI-RS configured by the CSI reference signal configuration 20, 21, 22, 23, 24, 25 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4.
- the resource element (kb, lb) is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 20, 21, 22 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 8. .
- the frame structure type 1 refers to frequency division duplex or frequency division half duplex
- the frame structure type 2 refers to time division duplex.
- the repeated PBCH is repeated in subframe 0, which refers to subframe 0 in the radio frame for PBCH repeated transmission.
- the repeated PBCH is repeated in subframe 5, which refers to subframe 5 within the radio frame for PBCH repeated transmission.
- the drawings in the present invention only show the resource elements occupied by the PBCH of a repeated PBCH in one physical resource block PRB pair.
- the repeated PBCH needs to be mapped and transmitted in 6 PRB pairs.
- the repeated PBCHs occupy the resource elements occupied by each PRB pair in the 6 PRB pairs and the one in the physical resource block PRB pair illustrated in the figure.
- the resource elements are the same.
- the repeated PBCH occupying N resource elements in one or more symbols means that the repeated PBCH occupies N resource elements on one or more symbols within 6 PRBs in the frequency domain.
- a repeated PBCH occupies N/6 resource elements on one or more symbols within one PRB of the frequency domain.
- / is the division symbol.
- the resource element occupied by the common reference signal is related to the cell identification number Cell ID
- the resource element occupied by the repeated PBCH is to avoid the resource element occupied by the common reference signal, so the resource element actually occupied by the repeated PBCH is also related to the Cell ID.
- the resource element occupied by the repeated PBCH is the repeated PBCH when the cell ID mod 3 is equal to the first value.
- the occupied resource elements are offset in frequency.
- repeated PBCH mapping or transmission does not occupy N1 resource elements in resource elements (k, l) in subframe 0, and/or does not occupy N2 of resource elements (k, l) in subframe 5 Resource element, no The N3 resource elements in the resource elements (ka, 1a) in the second slot in the subframe 5 are occupied, and the resource elements (kb, lb) in the second slot in the subframe 5 are not occupied.
- N4 resource elements For different cells, the values of N1, N2, N3, and N4 may be the same or different.
- the resource elements mapped by different base stations in different cells when performing MIB repeated transmission through the PBCH may be the same or different.
- the core idea of the embodiment of the present invention is to perform primary information block repeated transmission in a physical broadcast channel PBCH after determining that the primary information block MIB is repeatedly transmitted to the user equipment, where the PBCH is mapped in subframes 0 and / Or in subframe 5, and the PBCH mapping does not occupy the resource element set (k, l) in subframe 0, where k is an index of a frequency domain subcarrier, an index of an l time domain OFDM symbol, (k, l) Determine the frequency and time position of resource elements in the resource element set, k, l are variables; see the previous explanation of each parameter.
- the MIB is repeatedly transmitted, which is called repeated PBCH repetition
- the mapping of the repeated PBCH is equivalent to the transmission of the repeated PBCH
- the PBCH is used to carry the MIB.
- the MIB repeats transmission in subframe 0, which is referred to as repeated PBCH repetition in subframe 0, as will be understood by those skilled in the art.
- the frame structure of the system is frame structure type 1 (that is, the base station operates in frequency division duplex or half frequency division duplex mode) or frame structure type 2 (base station operates in time division duplex mode).
- the repeated PBCH is repeated in subframe 0, which uses a normal cyclic prefix.
- subframe 0 refers to subframe 0 within a radio frame for PBCH repeated transmission.
- the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 0.
- l' 3 or 4 in the resource element determined by (k total , l total ), except for the resource element (k, l), the resource element used for normal PBCH transmission, the primary synchronization signal, and the secondary synchronization signal transmission.
- the resource element, all resource elements except the resource elements used for common reference signal transmission, or 240 resource elements of all resource elements perform mapping or transmission of repeated PBCHs.
- the repeated PBCH occupies the symbol 3 in the first slot, the symbol 4 in the first slot, and the second slot in the subframe 0.
- M 4 or 5
- N 192 or 240 or 264.
- each of the symbols 6 in the second time slot occupies 48 resource elements.
- 2 illustrates a method of mapping or transmission of a repeated PBCH in a physical resource block pair for PBCH repetition in subframe 0.
- the drawings in the present invention all illustrate the resource elements occupied by the repeated PBCHs by using one physical resource block PRB pair.
- the repeated PBCH needs to be mapped and transmitted in 6 PRB pairs.
- the repeated PBCHs occupy the resource elements occupied by each PRB pair in the 6 PRB pairs and the one in the physical resource block PRB pair illustrated in the figure.
- the resource elements are the same.
- mod is a modulo operation.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, and the first slot in subframe 0.
- M* 6 or 5 or 4
- N* 240 or 336.
- the resource element occupies 48 resource elements on symbol 4 in the first slot and symbol 4 in the second slot.
- the symbol 6 in the first time slot and the symbol 4 in the second time slot occupy 48 resource elements.
- 3 illustrates a method of mapping or transmitting a repeated PBCH in a physical resource block pair for PBCH repetition in subframe 0.
- each of the first time slot in the subframe 0 is used for the symbol 3 in the physical resource block of the PBCH repetition, and/or each of the second time slots is used for the PBCH repetition.
- the other four resource elements except the eight resource elements for the repeated PBCH in the symbol 5 in the resource block can be used as reference signals. For example, it is used as a reference signal for repeating PBCH.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the repeated PBCH is repeated in subframe 0 and in subframe 5, and subframe 0 and subframe 5 are in a normal cyclic prefix.
- subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission.
- Repeated PBCH mapping or transmission does not occupy L x 6 of resource elements (k, l) in subframe 0
- the resource element, repeated PBCH mapping or transmission does not occupy P ⁇ 6 resource elements in the resource element (k, l) in subframe 5, and repeated PBCH mapping or transmission does not occupy the second slot in subframe 5.
- Min(Q, 24) ⁇ 6 resource elements in the resource element (ka, la) repeated PBCH mapping or transmission does not occupy the resource element (kb, lb) in the second time slot in subframe 5.
- Min(R, 24) ⁇ 6 resource elements, min is the minimum function.
- L, P, Q, and R are integers. In particular, L, P, Q, and R are even numbers; in particular, L, P, Q, and R are multiples of 4.
- Table 1 exemplifies the possible values of L, P, Q, and R.
- the value of each L, P, Q, R is indicated by a value index in the table below.
- the frame structure of the system is frame structure type 1 or frame structure type 2, and the repeated PBCH is repeated in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 adopt the normal cyclic prefix.
- subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission.
- the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 0, does not occupy the resource element (k, l) in subframe 5, and does not occupy the second slot in subframe 5
- the resource element (ka, la) does not occupy the resource element (kb, lb) in the second slot in subframe 5.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total), in addition to resource elements (k, l), normal Mapping or transmission of resource elements used for PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission; and repeated PBCH in the first of subframe 5
- the resource elements (k total , l total ) in the time slot and the resource elements (k total , l total ) in the second time slot except the resource element (k, l), the resource element (ka, la), and the resource element (kb) , lb), resource elements used for normal PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, and resource elements other than resource elements used for common reference signal transmission are mapped or transmitted.
- the frame structure of the system is frame structure type 1
- PBCH mapping or transmission occupies symbol 3
- the first slot in the first slot Symbol 4 within, symbol 0 in the second slot, symbol 4 in the second slot, symbol 5 in the second slot, and 240 resource elements in symbol 6 in the second slot .
- the repeated PBCH mapping or transmission occupies the symbol 4 in the first slot, and the second time The symbol 0 in the slot, the symbol 4 in the second slot, the symbol 5 in the second slot, and the 240 resource elements in the 5 symbols in the symbol 6 in the second slot.
- the repeated PBCHs are mapped or transmitted on 8 resource elements on each of the above 5 symbols in the physical resource block pair for PBCH repetition in subframe 5.
- repeated PBCH mapping or transmission occupies symbol 4 in the first slot, the first time The symbol 5 in the slot, the symbol 6 in the first slot, the symbol 0 in the second slot, and the 240 resource elements out of the 5 symbols in the symbol 4 in the second slot.
- the repeated PBCHs are mapped or transmitted on 8 resource elements on each of the above 5 symbols in the physical resource block pair for PBCH repetition in subframe 5.
- a way of mapping or transmitting a repeated PBCH is as shown in FIG. 4: the repeated PBCH is repeated once in subframe 0 and repeated once in subframe 5.
- the method of PBCH mapping or transmission repeated in subframe 0 is the same as that described in the first embodiment; the repeated PBCH mapping or transmission used in subframe 5 is used.
- the resource elements are the same as the resource elements used for repeated PBCH mapping or transmission in subframe 0.
- the resource elements here are the same, which can mean that the location of the resource elements is the same on the time-frequency resource.
- Another way to map or transmit a duplicate PBCH is:
- the repeated PBCH is repeated once in subframe 0 and once in subframe 5.
- the method of PBCH mapping or transmission repeated in subframe 0 is the same as that described in the first embodiment; the resource elements used for PBCH mapping or transmission repeated in subframe 5 and the PBCH mapping or transmission used in subframe 0 are used for mapping or transmission. Resource elements are not the same.
- FIG. 5 illustrates a method in which PBCH mapping repeated in subframe 0 and repeated PBCH mapping in subframe 5 are different.
- the frame structure of the system is frame structure type 1
- the repeated PBCH is repeated in the subframe 0 and the subframe 5
- the subframe 0 and the subframe 5 adopt the normal cyclic prefix.
- subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission.
- the repeated PBCH mapping or transmission does not occupy the resource elements (k, l) in subframe 0 and the repeated PBCH mapping or transmission does not occupy the resource elements (k, l) in subframe 5.
- the repeated PBCH is repeated once in subframe 0, and the repeated PBCH is repeated once or twice in subframe 5.
- the method of PBCH mapping or transmission repeated in subframe 0 is as described in the first embodiment.
- the resource elements used for mapping or transmission of the repeated PBCH in subframe 5 are the same as those used for normal PBCH mapping or transmission in subframe 0.
- the resource element used for mapping or transmitting the PBCH in the subframe 5 and the PBCH mapping or transmission in the subframe 0 is used.
- the prime locations are the same, and the resource elements used for mapping or transmission of another repeated PBCH in subframe 5 are the same as the resource elements used for normal PBCH mapping or transmission in subframe 0.
- the schematic is shown in Figure 6.
- the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 0, does not occupy the resource element (k, l) in subframe 5, and does not occupy the second slot in subframe 5 48 resource elements in the resource element (ka, la).
- the 48 resource elements are in the 6 physical resource block pairs used for repeated PBCH transmission.
- CSI reference signal configuration 1, CSI reference signal configuration 2.
- the CSI reference signal configuration in the CSI reference signal configuration 3 determines the resource element for the CSI-RS. That is, in the physical resource block pair used for each repeated PBCH transmission, in the case where the number of CSI-RSs or the number of CSI-RS antenna ports is 8, CSI reference signal configuration 1, CSI reference signal configuration 2, CSI reference signal configuration
- the 8 resource elements for CSI-RS determined by one CSI reference signal configuration in 3 are not used for repeated PBCH transmission.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total), in addition to resource elements (k, l), normal Mapping or transmission of resource elements used for PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission; and repeated PBCH in the first of subframe 5
- the element, the resource element used for normal PBCH transmission, the resource element used for transmission of the primary synchronization signal and the secondary synchronization signal, and the resource element other than the resource element used for common reference signal transmission are mapped or transmitted.
- the repeated PBCH is repeated once in subframe 0
- the repeated PBCH is repeated once in subframe 0 and subframe 5
- the repeated PBCH is repeated once in subframe 5.
- the repeated PBCH is repeated once in subframe 0 and subframe 5, and the repeated PBCH is occupied.
- the 24 resource elements in the last symbol of the second slot in subframe 0 are used, or the 24 resource elements in the last two symbols of the second slot in subframe 0 are occupied. That is, the repeated PBCH is mapped or transmitted on the 4 resource elements on the last symbol in the physical resource block for PBCH repetition in the second time slot in subframe 0 or 4 on the last two symbols. Map or transfer on resource elements.
- FIG. 7 and 8 illustrate schematic diagrams of mapping or transmission of two repeated PBCHs in subframe 0 and subframe 5.
- the repeated PBCH mapping or transmission does not occupy all of the resource elements in the resource elements (ka, la) in the second slot in subframe 5.
- the resource elements used for transmission are mapped or transmitted on resource elements other than the resource elements used for common reference signal transmission.
- the repeated PBCH is repeated once in subframe 0
- the repeated PBCH is repeated once in subframe 0 and subframe 5
- the repeated PBCH is repeated once in subframe 5.
- the repeated PBCH is repeated once in subframe 0 and subframe 5, and the repeated PBCH occupies 72 resource elements in the last symbol of the second slot in subframe 0, or occupies the second in subframe 0. 72 resource elements in the last two symbols of the slot. That is, the repeated PBCH is mapped or transmitted on 12 resource elements on the last symbol in the physical resource block for PBCH repetition in the second time slot of subframe 0 or 12 on the last two symbols. Mapping on resource elements Shoot or transmit.
- the repeated PBCH mapping or transmission does not occupy 96 resource elements in the resource elements (ka, la) in the second slot in subframe 5 and the repeated PBCH mapping or transmission does not occupy the resource elements in subframe 0 ( k,l); or,
- the repeated PBCH mapping or transmission does not occupy 96 resource elements in the resource elements (ka, la) in the second slot in subframe 5 and the repeated PBCH mapping or transmission does not occupy the resource elements in subframe 5 ( k, l).
- the 96 resource elements are in the 6 physical resource block pairs used for repeated PBCH transmission.
- CSI reference signal configuration 1, CSI reference signal configuration 2.
- the two CSI reference signals in the CSI reference signal configuration 3 configure the determined resource elements for the CSI-RS. That is, in the physical resource block pair used for each repeated PBCH transmission, in the case where the number of CSI-RSs or the number of CSI-RS antenna ports is 8, CSI reference signal configuration 1, CSI reference signal configuration 2, CSI reference signal configuration
- the 16 resource elements for CSI-RS determined by the two CSI reference signal configurations in 3 are not used for repeated PBCH transmission.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total), in addition to resource elements (k, l), normal Mapping or transmission of resource elements used for PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission; and repeated PBCH in the first of subframe 5
- the resource elements in the time slot (k total , l total ) and the resource elements in the second time slot (k total , l total ) except for the 96 resource elements in the resource element (ka, la) and the resources used for normal PBCH transmission The elements, the resource elements used for the transmission of the primary synchronization signal and the secondary synchronization signal, and the resource elements other than the resource elements used for the common reference signal transmission are mapped or transmitted.
- mapping, or transmitting, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission and repeated PBCH resource elements in the first time slot of subframe 5 ( k total , l total ) and the resource elements (k total , l total ) in the second time slot except for the resource elements (k, l), 96 resource elements in the resource elements (ka, la), and the normal PBCH transmission
- the resource elements, the resource elements used for the transmission of the primary synchronization signal and the secondary synchronization signal, and the resource elements other than the resource elements used for the common reference signal transmission are mapped or transmitted.
- the repeated PBCH is repeated once in subframe 0, the repeated PBCH is repeated once in subframe 0 and subframe 5, and the repeated PBCH is repeated once in subframe 5.
- the repeated PBCH is repeated once in subframe 0 and subframe 5, and the repeated PBCH may occupy 24 resource elements in the last symbol of the second slot in subframe 0, or occupy the second in subframe 0. 24 resource elements in the last two symbols of a time slot. That is, the repeated PBCH is mapped or transmitted on the 4 resource elements on the last symbol in the physical resource block for PBCH repetition in the second time slot in subframe 0 or 4 on the last two symbols. Map or transfer on resource elements.
- the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 0, does not occupy the resource element (k, l) in subframe 5, and does not occupy the second slot in subframe 5 Resource element (ka, la).
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total), in addition to resource elements (k, l), normal Mapping or transmission of resource elements used for PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, resource elements other than resource elements used for common reference signal transmission; and repeated PBCH in the first of subframe 5
- the resource elements in the time slot (k total , l total ) and the resource elements in the second time slot (k total , l total ) are used in addition to the resource elements (k, l), resource elements (ka, la), and normal PBCH transmissions.
- the resource elements, the resource elements used for the transmission of the primary synchronization signal and the secondary synchronization signal, and the resource elements other than the resource elements used for the common reference signal transmission are mapped or transmitted.
- the repeated PBCH is repeated once in subframe 0, and the repeated PBCH is repeated 1.5 times in subframe 5.
- the PBCH mapping or transmission method repeated in subframe 0 is as described in the first embodiment.
- the resource elements used for repeated PBCH mapping or transmission in subframe 5 are 72 resource elements on symbol 3 in the first slot, symbol 4 in the first slot, symbol 0 in the second slot, and second Symbols within a slot 1, symbol 4 in the second slot, symbol 5 in the second slot, and 48 resource elements in each of the symbols in the second slot.
- Figure 11 is a schematic diagram of a repeated PBCH mapping or transmission.
- the resource elements used for 1.5 repeated PBCH mapping or transmission in subframe 5 are 72 resource elements on symbol 3 in the first slot, the first Symbol 4 in the time slot, symbol 0 in the second time slot, symbol 1 in the second time slot, symbol 4 in the second time slot, symbol 5 in the second time slot, symbol 6 in the second time slot 48 resource elements within a symbol in .
- the frame structure of the system is frame structure type 2, and the repeated PBCH is repeated in the subframe 0 and the subframe 5, and the subframe 0 and the subframe 5 adopt the normal cyclic prefix.
- subframe 0 and subframe 5 refer to subframe 0 and subframe 5 in a radio frame for PBCH repeated transmission.
- the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 0, does not occupy the resource element (k, l) in subframe 5, and does not occupy the second slot in subframe 5
- the resource element (ka, la) does not occupy the resource element (kb, lb) in the second slot in subframe 5.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total) and a subframe 5 in a first time slot the resource element (k total, l total), and the second time slot of resource elements (k total, l total) are: in addition to resource elements in the subframe 0 (k, l), subframe 5 resource elements (k, l), resource elements (ka, la) in subframe 5, resource elements (kb, lb) in subframe 5, resource elements used for normal PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, common reference Mapping or transmission on resource elements outside the resource elements used for signal transmission.
- the repeated PBCH is repeated three times in subframe 0 and subframe 5. Wherein, one repeated PBCH is in subframe 0, one repeated PBCH is in subframe 5, and one repeated PBCH is in subframe 0 and subframe 5.
- a repeated PBCH in subframe 0 occupies 72 resource elements on symbol 3 in the first slot, occupying symbol 4 in the first slot, symbol 5 in the first slot, and 48 resource elements on each symbol of symbol 6 in one slot, symbol 4 in the second slot, and 3 symbols in symbol 5 in the second slot occupy the second slot The symbol 4 within, the 24 resource elements on one of the symbols 5 in the second slot.
- a repeated PBCH in subframe 0 occupies symbol 3 in the first slot, and 72 resource elements on each symbol in symbol 5 in the second slot occupy the first slot.
- Symbol 4 symbol 5 in the first slot, symbol 6 in the first slot, and 48 resource elements on each symbol of the 2 symbols in symbol 4 in the second slot.
- the one-time repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, symbol 5 in the first slot, and symbol 6 in the first slot in subframe 5.
- Symbol 0 in the second slot, symbol 4 in the second slot, and N" resource elements on M" symbols in symbol 5 in the second slot.
- a repeated PBCH in subframe 5 occupies symbol 3 in the first slot and symbol 5 in the second slot.
- a repeated PBCH in subframe 5 occupies symbol 3 in the first slot, and 72 resource elements on each symbol in symbol 5 in the second slot occupy the first slot.
- Symbol 4 symbol 5 in the first slot, symbol 6 in the first slot, symbol 0 in the second slot, and 2 symbols in symbol 4 in the second slot 48 resource elements on the symbol.
- the repeated PBCH occupies S1 resource elements on each of the three symbols in subframe 5; or the repeated PBCH occupies S1 resources on one of the three symbols in subframe 5 Element, S2 resource elements on one symbol, S3 resource elements on one symbol.
- A, b, c, and d in FIG. 12 respectively illustrate a method in which a repeated PBCH maps one PRB pair in subframe 0 and one PRB pair in subframe 5.
- the frame structure of the system is frame structure type 1 or frame structure type 2, the repeated PBCH is repeated in subframe 0, and the subframe 0 is extended cyclic prefix.
- the repeated PBCH mapping or transmission does not occupy N resource elements in the resource elements (k, l) in subframe 0, and N is a multiple of 12.
- repeated PBCH mapping or transmission does not occupy N/2 resource elements on each of symbols 4 and 5 in the first slot in subframe 0 or in the second slot.
- the N resource elements are in the pair of 6 physical resource blocks used for repeated PBCH transmissions.
- the resource element, or the resource element for the CSI-RS determined by the CSI-RS configuration of (N/48) 8-antenna ports. For example, if N 48, the number of CSI-RSs, or the number of CSI-RS antenna ports is 8, the frame structure of the system is CSI reference signal configuration 2 or CSI reference signal configuration 3 determined for frame structure type 1 for CSI. -RS resource element.
- the frame structure of the system is determined by the CSI reference signal configuration 0 or the CSI reference signal configuration 1 when the frame structure type 2 is used.
- Resource element of CSI-RS is 8.
- the repeated PBCH subframe 0 starts with the symbol l', and among the resource elements determined by (k total , l total ), except for the N resource elements in the above (k, l), the resource elements used for normal PBCH transmission,
- the resource elements used for the primary synchronization signal and the secondary synchronization signal are mapped or transmitted on resource elements other than the resource elements used for common reference signal transmission.
- l' 3.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the second slot, and the second slot in subframe 0.
- N resource elements on M symbols in symbol 5.
- M 2 or 3
- N 168 or 144 or 120 or 96.
- Each symbol occupies 24 resource elements.
- Each symbol in the occupies 48 resource elements.
- the repeated PBCH occupies the symbol 3 in the first slot, the symbol 4 in the first slot, and the symbol in the first slot in subframe 0. 5.
- a PBCH that repeats once in subframe 0 occupies 48 resource elements on symbol 3 in the first slot, and 72 resource elements on symbol 4 in the second slot, in the first slot.
- Each symbol in symbol 4 and symbol 5 within the first slot occupies 24 or 48 or 60 resource elements.
- the frame structure of the system is frame structure type 1 or frame structure type 2
- the repeated PBCH is repeated in subframe 0 and/or subframe 5
- subframe 0 and/or subframe 5 are extended. Prefix.
- the repeated PBCH mapping or transmission does not occupy L ⁇ 6 resource elements in the resource element (k, l) in subframe 0, and the repeated PBCH mapping or transmission does not occupy the resource element (k, l) in subframe 5 P ⁇ 6 resource elements, repeated PBCH mapping or transmission does not occupy min(Q, 24) ⁇ 6 resource elements in resource elements (ka, la) in the second slot in subframe 5, min Is the minimum function.
- L, P, and Q are even numbers. In particular, L, P, and Q are multiples of four.
- the repeated PBCH is on each of the last two symbols in the physical resource block for the PBCH repetition in the first time slot or the second time slot in the subframe 0 (12-L) /2) mapping or transmission on resource elements, or mapping or transmission on (24-L) resource elements on the last two symbols; repeated PBCH in subframe 5 in the first time slot or second Mapping or transmitting on (12-P/2) resource elements on each of the last two symbols in the physical resource block for the PBCH repetition in the slot, or on the last two symbols ( Mapping or transmission on 24-P) resource elements; repeated PBCHs in each of symbols 1 and 2 in the physical resource block for PBCH repetition in the second time slot in subframe 5 Mapping or transmission on (12-Q/2) resource elements, or mapping on (24-Q) resource elements on symbols 1 and 2.
- the frame structure of the system is frame structure type 1 or frame structure type 2. Repeated The PBCH is repeated in subframe 0 and in subframe 5, and subframe 0 and subframe 5 are extended cyclic prefixes.
- a repeated PBCH mapping or transmission is: repeated PBCH mapping or transmission does not occupy L ⁇ 6 resource elements in resource elements (k, l) in subframe 0, and repeated PBCH mapping or transmission does not occupy P ⁇ 6 resource elements in the resource element (k, l) in the subframe 5.
- L, P are even numbers, and L and P may be the same or different. In particular, L is equal to 2 or 4 or 8 or 16, and P is equal to 2 or 4 or 8 or 16.
- the L ⁇ 6 resource elements are resource elements for CSI-RS determined by CSI-RS configuration of (L/2) 2 antennas or 1 antenna port in 6 physical resource block pairs used for repeated PBCH transmission. , or the resource element for CSI-RS determined by the CSI-RS configuration of (L/4) 4 antenna ports, or the CSI-RS configuration of (L/8) 8-antenna ports determined for CSI-RS Resource element.
- the P ⁇ 6 resource elements are resource elements for CSI-RS determined by CSI-RS configuration of (P/2) 2 antennas or 1 antenna port in 6 physical resource block pairs used for repeated PBCH transmission. , or a resource element for CSI-RS determined by a CSI-RS configuration of (P/4) four antenna ports, or a CSI-RS configuration of (P/8) eight antenna ports determined for CSI-RS Resource element.
- the L ⁇ 6 or P ⁇ 6 resource elements are 6 physical resource block pairs used for repeated PBCH transmission, CSI-RS number or CSI-RS antenna
- the frame structure of the system is a resource element for CSI-RS determined by CSI reference signal configuration 2 or CSI reference signal configuration 3 when frame structure type 1, or the frame structure of the system is a frame structure.
- the CSI reference signal configuration type 0 or the CSI reference signal configuration 1 determines the resource element for the CSI-RS.
- the frame structure of the system is the CSI reference signal configuration 2 of the frame structure type 1.
- 8 resource elements for CSI-RS determined by CSI reference signal configuration 3 are not used for repeated PBCH transmission, or the frame structure of the system is CSI reference signal configuration 0 or CSI reference signal configuration 1 when frame structure type 2
- the determined 8 resource elements for CSI-RS are not used for repeated PBCH transmission.
- the L ⁇ 6 or P ⁇ 6 resource elements are among the 6 physical resource block pairs used for repeated PBCH transmission, the number of CSI-RS or CSI-RS antenna
- the frame structure of the system is the resource element for the CSI-RS determined by the CSI reference signal configuration 2 and the CSI reference signal configuration 3 when the frame structure type 1 is used, or the frame structure of the system is the frame structure.
- the CSI reference signal configuration 0 at type 2 and the resource element for CSI-RS determined by CSI reference signal configuration 1 are used.
- the frame structure of the system is the CSI reference signal configuration 2 of the frame structure type 1.
- 16 resource elements for CSI-RS determined by CSI reference signal configuration 3 are not used for repeated PBCH transmission, or CSI reference signal configuration 0 and CSI reference signal configuration 1 when frame structure of system is frame structure type 2
- the determined 16 resource elements for CSI-RS are not used for repeated PBCH transmission.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total) and a subframe 5 in a first time slot
- the inner resource element (k total , l total ) and the resource element in the second time slot (k total , l total ) in addition to the L ⁇ 6 resource elements and sub-members in the resource element (k, l) in the sub-frame 0 P ⁇ 6 resource elements in resource elements (k, l) in frame 5, resource elements used for normal PBCH transmission, resource elements used for primary synchronization signal and secondary synchronization signal transmission, and resource elements used for common reference signal transmission Map or transfer on resource elements.
- the repeated PBCH is repeated once in subframe 0, and the repeated PBCH is repeated once or twice in subframe 5.
- the method of PBCH mapping or transmission repeated in subframe 0 is as described in Embodiment 6.
- the resource elements used for mapping or transmission of the repeated PBCH in subframe 5 are the same as those used for normal PBCH mapping or transmission in subframe 0.
- the resource element used for mapping or transmitting the PBCH in the subframe 5 and the PBCH mapping or transmission in the subframe 0 is used.
- the prime locations are the same, and the resource elements used for mapping or transmission of another repeated PBCH in subframe 5 are the same as the resource elements used for normal PBCH mapping or transmission in subframe 0.
- a repeated PBCH transmission can be performed within subframe 0, and two repeated PBCH transmissions are performed within subframe 5.
- the method of performing a repeated PBCH transmission in subframe 0 can be as described in the method of Embodiment 6.
- the one-time repeated PBCH occupies the symbol 3 in the first slot, the symbol 0 in the second slot, and the symbol in the second slot in the subframe 5.
- Symbol 2 in the second slot, symbol 3 in the second slot, symbol 4 in the second slot, and N on the M symbols in symbol 5 in the second slot Resource elements.
- M 3 or 4
- N 144 or 180 or 168.
- the PBCH that is repeated once in subframe 5 occupies 48 resources on symbol 3 in the first slot, symbol 0 in the second slot, and symbol 1 in the second slot. element.
- the repeated PBCH can also occupy 36 resource elements in symbol 2 of the second slot.
- Another repeated PBCH in subframe 5 occupies 72 or 36 resource elements on symbol 2 in the second slot, and symbol 3 in the second slot occupies 48 resource elements, in the second Each of the symbol 4 within the slot and the symbol 5 within the second slot occupies 24 or 48 resource elements. This is shown in Figures 14a and 14b.
- the one-time repeated PBCH occupies the symbol 3 in the first slot, the symbol 4 in the first slot, and the symbol in the first slot in the subframe 5.
- Symbol 0 in the second time slot, symbol 1 in the second time slot, symbol 2 in the second time slot, symbol 3 in the second time slot, symbol in the second time slot N resource elements on M symbols in 4.
- M 3 or 4 or 5
- N 192 or 216.
- the PBCH that is repeated once in the subframe 5 occupies 48 resource elements in the symbol 3 in the first slot and the symbol 0 in the second slot, and the symbol in the first slot 4.
- Each symbol in symbol 5 in the first time slot occupies 24 or 48 resource elements.
- the repeated PBCH may also occupy 24 or 48 resource elements in symbol 1 of the second slot.
- Another repeated PBCH in subframe 5 is at the second time
- the symbol 2 in the slot and the symbol 4 in the second slot occupy 72 resource elements on each symbol, and the symbol 3 in the second slot occupies 48 resource elements.
- the repeated PBCH can also occupy 24 resource elements in the symbol 1 of the second slot. This is shown in Figures 14c and 14d.
- the repeated PBCH mapping or transmission does not occupy min(Q, 24) x 6 resource elements in the resource elements (ka, la) in subframe 5.
- the base station may perform one repeated PBCH transmission in the subframe 0 and another repeated PBCH transmission in the subframe 5; and may perform a repeated PBCH transmission in the subframe 0 and the subframe 5, And another repeated PBCH transmission is performed within subframe 5.
- frame structure type 1 When the frame structure of the system is frame structure type 1:
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the second slot, and N resource elements on the M symbols in symbol 5 in the second slot in subframe 0. .
- the transmission or mapping method in subframe 0 is, for example, the sixth embodiment.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 0 in the second slot, symbol 3 in the second slot, symbol 4 in the second slot, and in subframe 5 N* resource elements on M* symbols in symbol 5 in the second time slot.
- M* 3 or 5.
- N* 144 or 240.
- Each of the three symbols in the symbol 4 of the second time slot and the symbol 5 in the second time slot occupies 48 resources. Source element.
- Each of the symbol 3, the symbol 4 in the second time slot, and the symbol 5 in the second time slot occupies 48 resource elements.
- the one-time repeated PBCH occupies 48 resource elements on symbol 3 in the first slot of subframe 0, and the one-time repeated PBCH also occupies symbol 3 and the second in the first slot of subframe 5.
- the repeated PBCH also occupies the symbol 4 of the second slot of the subframe 0, the symbol 5 of the second slot of the subframe 0, the symbol 1 of the second slot of the subframe 5, and the second subframe 5 Symbol 2 of the time slot 2, symbol 4 of the second time slot of the subframe 5, 48 resource elements of one or more symbols in the symbol 5 of the second time slot of the subframe 5.
- frame structure type 2 When the frame structure of the system is frame structure type 2:
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, and symbol 5 in the first slot, and symbol 4 in the second slot in subframe 0.
- N resource elements on the M symbols. M, N are predefined integers.
- the transmission or mapping method in subframe 0 is, for example, the sixth embodiment.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, and symbol 5 in the first slot, and symbol 0 in the second slot in subframe 5.
- Symbol 3 in the second slot N* resource elements on M* symbols in symbol 4 in the second slot.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 0 in the second slot, and symbols in the second slot in subframe 5.
- the 48 resource elements on each symbol in 3 occupy 72 resource elements in symbol 4 in the second time slot.
- the repeated PBCH is a total of 24 resource elements occupied by the symbol 4 in the first slot of the subframe 5 and the symbol 5 in the first slot.
- a repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, and symbol 5 in the first slot, and symbol 4 in the second slot in subframe 0.
- the one-time repeated PBCH also occupies the symbol 3 in the first slot, the symbol 4 in the first slot, and the symbol 5 in the first slot, and the second time in the subframe 5.
- the repeated PBCH occupies 72 resource elements on each symbol of symbol 4 of the second slot of subframe 0, and symbol 4 of the second slot of subframe 5, and symbol 3 of the first slot of subframe 0
- the symbol 3 in the first slot of subframe 5, the symbol 0 in the second slot of subframe 5, and the symbol 3 in the second slot of subframe 5 occupy 48 resource elements.
- a method of mapping or transmitting a repeated PBCH is:
- the repeated PBCH is repeated once in subframe 0 and once in subframe 5.
- the method of PBCH mapping or transmission repeated in subframe 0 is the same as the method in Embodiment 6; the resource elements used for PBCH mapping or transmission repeated in subframe 5 are used for mapping or transmission of repeated PBCH in the above subframe 0.
- the resource elements are the same.
- the PBCH mapping that is repeated once in the subframe 0 adopts the method shown in FIG. 13a (or one of FIG. 13b, c, d, e, and f) in Embodiment 6, and the PBCH mapping that is repeated once in the subframe 5.
- the method shown in Fig. 13a (or one of Figs. 13b, c, d, e, f) is also employed.
- Another way of mapping or transmitting a repeated PBCH is:
- the repeated PBCH is repeated once in subframe 0 and once in subframe 5.
- the resource elements used for PBCH mapping or transmission repeated in subframe 5 are different from the resource elements used for repeated PBCH mapping or transmission in subframe 0.
- the method of PBCH mapping or transmission repeated in subframe 0 is the same as the method in Embodiment 6.
- the method of PBCH mapping or transmission repeated in subframe 5 is also described in the method of Embodiment 6, except that subframe 0 in Embodiment 6 is replaced with subframe 5; but PBCH is repeated in subframe 5.
- the resource elements used for mapping or transmission are not the same as the resource elements used for repeated PBCH mapping or transmission in subframe 0.
- the PBCH mapping repeated once in subframe 0 adopts the method shown in FIG. 13a (or FIG. 13b or FIG. 13c), and the PBCH mapping repeated once in subframe 5 adopts FIG. 13b (or FIG. 13a or FIG. 13c). The method shown.
- a, b, c, d, e illustrate a method in which PBCH mapping repeated in subframe 0 and repeated PBCH mapping in subframe 5 are different.
- the frame structure of the system is frame structure type 2
- the repeated PBCH is repeated in the subframe 0 and the subframe 5
- the subframe 0 and the subframe 5 are extended cyclic prefixes.
- Repeated PBCH mapping or transmission does not occupy N elements in resource elements (k, l) in subframe 0, does not occupy M elements in resource elements (k, l) in subframe 5, does not occupy subframes K elements in the resource element (ka, la) in the second time slot of 5.
- PBCH repeated in the first slot of the subframe 0 of resource elements (k total, l total), and the second time slot of resource elements (k total, l total) and a subframe 5 in a first time slot the resource element (k total, l total), and the second time slot of resource elements (k total, l total) of: the sub-frame 0 of resource elements (k, l) of N elements, in addition to subframe 5 M elements in the resource element (k, l), K elements in the resource elements (ka, la) in the subframe 5, resource elements used for normal PBCH transmission, primary synchronization signals, and resource elements used for secondary synchronization signal transmission Mapping or transmission on resource elements other than resource elements used for common reference signal transmission.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, symbol 5 in the first slot, and symbol 4 in the second slot in subframe 0.
- the PBCH repeated in subframe 0 occupies 48 resource elements on symbol 3 in the first slot, and each of symbols 4 and 5 in the first slot
- the 24 symbols occupy 24 resource elements and the symbol 4 in the second time slot occupies 72 resource elements.
- the repeated PBCH also occupies symbol 3 in the first slot, symbol 4 in the first slot, symbol 5 in the first slot, and symbol in the second slot in subframe 5.
- the repeated PBCH occupies symbol 3 in the first slot, symbol 4 in the first slot, symbol 5 in the first slot, and symbol 0 in the second slot in subframe 5.
- Symbol 3 in two slots Z" resource elements on Y" symbols in symbol 4 in the second slot.
- a PBCH that is repeated once in subframe 5 occupies 24 resource elements on each of symbols 4 and 5 in the first slot, and in symbols 0 and 3 in the second slot. Each symbol occupies 48 resource elements and occupies 72 resource elements on symbol 4 in the second slot.
- FIG. 16 is a diagram showing resource elements of PBCH mapping in this embodiment, which can be referred to for reference.
- the foregoing embodiment can be implemented that when a UE that needs to receive a repeatedly transmitted PBCH can receive a repeated PBCH, the normal UE can also receive the CSI-RS.
- the number of resource elements used for PBCH transmission or mapping on one OFDM symbol is an even number.
- the PRB of the present invention may also be a Resource Block (RB).
- i is an even number, which is The resource elements (K, L) and (K+n, L) mapped in one OFDM symbol satisfy n ⁇ 3.
- K is the index of the frequency domain subcarrier transmitted or mapped by the PBCH
- L is the index of the orthogonal frequency division multiplexing OFDM symbol of the PBCH transmission or mapping
- n is a positive integer.
- K, L), (K+n, L) determine the frequency and temporal position of the resource elements.
- PBCH mapping in subframe 0 and/or subframe 5 includes:
- the mapping of the repeatedly transmitted PBCH does not occupy the resource elements in the first x symbols of each subframe in the subframe 0 and/or the subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource elements in the first y symbols of each subframe in the subframe 0 and/or the subframe 5;
- x and y are non-negative integers, and x and y are different.
- mapping of the repeatedly transmitted PBCH in subframe 0 and/or subframe 5 includes:
- the mapping of the repeatedly transmitted PBCH does not occupy resource elements in the first 4 symbols of each subframe in subframe 0 and/or subframe 5.
- the embodiment of the present invention further provides a base station for performing the method provided in the foregoing embodiment, as shown in FIG. 17, which is a functional block diagram of a base station according to an embodiment of the present invention.
- the base station includes a transmitting unit 171, a receiving unit 172, and a control unit 173.
- the sending unit 171 is configured to repeatedly transmit the PBCH
- the control unit 173 is configured to control the sending unit to map the repeatedly transmitted PBCH in the subframe 0 and/or the subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, where k is an index of the frequency domain subcarrier, and l is an index of the orthogonal frequency division multiplexing OFDM symbol, (k, l) Determine the frequency and time position of the resource elements, k, l are variables.
- the value of k, l of the resource element (k, l) is equal to k, l calculated by any one of the following methods. All or part of the value:
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the number of configured CSI-RS or the number of CSI-RS antenna ports.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4;
- the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 5, 10, 11 Resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is the number of CSI-RSs configured Or when the number of CSI-RS antenna ports is 2, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 5, 10, 11; or, the resource element determined by (k, l) is the configured CSI- When the number of RSs or the number of CSI-RS antenna ports is 4, the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured. Or when the number of CSI-RS antenna ports is 8, the resource element occupied by the CSI-RS configured by the CSI reference signal configuration 0;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3 when the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- the base station may map the repeatedly transmitted PBCH in any one of the resource elements according to the embodiment shown in FIG. 2 to FIG. 16 according to actual needs.
- the base station may map the repeatedly transmitted PBCH in any one of the resource elements according to the embodiment shown in FIG. 2 to FIG. 16 according to actual needs.
- the above sending unit 171 can be a transmitter or a transceiver
- the above receiving unit can be a receiver or a transceiver
- the sending unit and the receiving unit can be integrated to form a transceiver unit, which is implemented as a transceiver corresponding to hardware.
- the above control unit 173 may be embedded in or independent of the processor of the base station in hardware, or may be stored in the memory of the base station in software, so that the processor invokes the operations corresponding to the above modules.
- the processor can be a central processing unit (CPU), a microprocessor, a microcontroller, or the like.
- FIG. 18 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- the base station includes a transmitter 182, a receiver 181, a memory 183, and a processor 184 coupled to the transmitter 182, the receiver 181, and the memory 183, respectively.
- the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency radio processing component, and an input/output device, and the embodiment of the present invention is not limited thereto.
- a set of program codes is stored in the memory, and the processor 184 is configured to call the program code stored in the memory 183 for performing the following operations:
- the PBCH is repeatedly transmitted to the UE by the transmitter 182, wherein the repeatedly transmitted PBCH is mapped in the subframe 0 and/or the subframe 5;
- the mapping of the repeatedly transmitted PBCH does not occupy the resource element (k, l) in the subframe 0, where k is an index of the frequency domain subcarrier, and l is an index of the orthogonal frequency division multiplexing OFDM symbol, (k, l) Determine the frequency and time position of the resource elements, k, l are variables.
- the value of k, l of the resource element (k, l) is equal to all or part of the value of k, l calculated by any one of the following methods:
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is the resource element in the second time slot in the subframe;
- the resource element determined by (k, l) Is a resource element in the first time slot in the subframe;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9, 18, 19; or, the resource element determined by (k, l) is the number of configured CSI-RS or the number of CSI-RS antenna ports.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4, 9; or, the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 8
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 4;
- the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2, CSI reference signal configuration 0, 5, 10, 11
- the resource element occupied by the configured CSI-RS; or, the resource element determined by (k, l) is configured when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4, CSI reference signal configuration 0, 5
- the resource element occupied by the CSI-RS; or, the resource element determined by (k, l) is the CSI-RS configured by the CSI reference signal configuration 0 when the configured number of CSI-RSs or the number of CSI-RS antenna ports is 8. Occupied resource element;
- the resource element determined by (k, l) is when the number of configured CSI-RS or the number of CSI-RS antenna ports is 1.
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 2, 3, 6, 7, 12, 13, 14, 15; or, the resource element determined by (k, l) is the number of CSI-RSs configured or
- the CSI reference signals are configured with resource elements occupied by CSI-RSs configured by 2, 3, 6, 7, 12, 13, 14, 15; or resources determined by (k, l)
- the element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3, 6, and 7 when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 4; or, (k, l) is determined.
- the resource element is a resource element occupied by the CSI-RS configured by the CSI reference signal configuration 2, 3 when the
- the resource element determined by (k, l) is when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 1, CSI reference signal configuration 0, 1, 4, 5, 8 , the resource element occupied by the CSI-RS configured by 9, 10, 11; or the resource element determined by (k, l) is the CSI reference signal when the number of configured CSI-RSs or the number of CSI-RS antenna ports is 2.
- the resource element determined by (k, l) is the number of CSI-RSs configured or CSI-RS
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1, 4, 5; or, the resource element determined by (k, l) is the number of CSI-RSs configured or CSI -
- the CSI reference signal configures the resource elements occupied by the CSI-RS configured by 0, 1.
- the base station may map the repeatedly transmitted PBCH in any one of the resource elements according to the embodiment shown in FIG. 2 to FIG. 16 according to actual needs.
- the base station may map the repeatedly transmitted PBCH in any one of the resource elements according to the embodiment shown in FIG. 2 to FIG. 16 according to actual needs.
- the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
- the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.
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Abstract
本发明实施例提供的PBCH重复传输的方法,在确定需要对所述用户设备进行MIB重复传输后,在物理广播信道PBCH内进行MIB重复传输,其中所述PBCH映射在子帧0和/或子帧5中,并且,所述PBCH映射不占用子帧0中的资源元素集合(k,l),通过本发明实施例,可以实现需要接收重复传输的PBCH的UE可以接收重复的PBCH时,正常UE也可以接收CSI-RS。
Description
本发明涉及通信领域,具体涉及到一种PBCH重复传输的方法及基站。
基于长期演进(Long Term Evolution,简称为LTE)的低成本机器类型通信(Machine Type Communication,简称为MTC),需要对LTE网络的覆盖进行(如额外的20dB,或15dB)增强,以保证处于地下室或信道质量差的用户设备(User Equipment,简称为UE)能和基站进行可靠的通信。
在LTE或增强型长期演进技术(LTE Advanced,LTE-A)系统中,主要信息块(MIB,master information block)承载在物理广播信道(PBCH,physical broadcast channel)中,用于通过PBCH信道传输系统需要的基本信息,例如下行系统带宽、系统帧号、天线数目的信息等,UE通过检测PBCH获得MIB。
现有LTE或LTE-A系统中,每个无线帧内的0号子帧有一次PBCH的传输。而且以系统帧号(system frame number,SFN)是4的倍数的无线帧开始的连续的4个无线帧内的PBCH传输的MIB内容相同。现有LTE或LTE-A系统中的上述PBCH在本申请中称为正常PBCH。考虑到覆盖增强,需要对MIB进行增强传输,以提高信息的传输可靠性,增强传输可以通过重复传输实现,在本申请中称为PBCH重复传输。
现有LTE或LTE-A系统中,信道状态信息参考信号(CSI-RS:Channel-State Information reference signal)可以用于LTE或LTE-A UE进行信道状态的测量。基站通过专有信令给正常(normal)或传统(legacy)
UE进行CSI-RS配置和CSI-RS子帧配置,这样正常UE就获知了哪些子帧上有CSI-RS,而且也获知了CSI-RS的配置。
但是,基站为正常UE传输CSI-RS时,接收重复传输的PBCH的UE,本申请中称为第一UE,并不知道基站为正常UE配置的CSI-RS和CSI-RS子帧,现有技术没有解决考虑到CSI-RS如何进行PBCH的重复传输。其中,第一UE还可以是新种类(category)的UE、新类型的UE、具有延迟容忍特性的UE、或具有MTC业务的UE。
发明内容
本发明实施例的目的是提供一种PBCH重复传输的方法及基站,以实现接收MIB重复传输的UE不知道基站为正常UE配置的CSI-RS和CSI-RS子帧的情况下,需要接收重复传输的PBCH的UE可以接收重复的PBCH时,正常UE也可以接收CSI-RS。
第一方面,本发明实施例提供了一种物理广播信道PBCH重复传输的方法,所述方法包括:
重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
基于第一方面,在第一种可能的实施方式中,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
基于第一方面的第一种可能的实施方式,在第二种可能的实施方式中,所述重复传输的PBCH在子帧0内进行重复传输,所述子帧0是指用于PBCH重复传输的无线帧内的子帧0;
所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中的,除子帧0中的资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;其中,一个子帧内第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal),通
过(ktotal,ltotal)确定资源元素集合中资源元素的频率和时间位置,
对于正常循环前缀:ltotal=l',l'+1,...,6 for ns mod 2=0or ns=0;
对于扩展循环前缀:ltotal=l',l'+1,...,5 for ns mod 2=0or ns=0;
对于正常循环前缀:total=0,1,...,6 for ns mod 2=1or ns=1;
对于扩展循环前缀:ltotal=0,1,...,5 for ns mod 2=1or ns=1。
基于第一方面的第一种可能的实施方式,在第三种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)中的L×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的资源元素(k,l)中的P×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,其中,min是最小值函数,L,P,Q是偶数整数;
其中,一个子帧第二个时隙内的资源元素集合(ka,la)通过如下的任意一个方法确定,ka是频域子载波的索引,la是OFDM符号的索引:
方法1:
对于正常循环前缀:la=2,3;
对于扩展循环前缀:la=1,2;
方法2;
对于正常循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,
17所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置1,2,3,6,7,8所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置1,2,3所配置的CSI-RS占用的资源元素。
对于扩展循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置16,17,18,19,20,21所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置16,17,18所配置的CSI-RS占用的资源元素。
基于第一方面的第三种可能的实施方式,在第四种可能的实施方式中,所述子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射还不占用子帧5中的第二个时隙内的资源元素(kb,lb)中的min(R,24)×6个资源元素,其中,min是最小值函数,R是偶数整数;
其中,一个子帧第二个时隙内的资源元素集合(kb,lb)通过如下的任意一个方法确定,kb是频域子载波的索引,lb是OFDM符号的索引:
方法1:
lb=1,3
方法2:
资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置20,21,22,23,24,25所配置的CSI-RS占用的资源元素;或,上述资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置20,21,22所配置的CSI-RS占用的资源元素。
基于第一方面的第三或第四种可能的实施方式,在第五种可能的实施方式中,所述L,P,Q,R的值是预先规定的值或信令配置的值。
基于第一方面的第五种可能的实施方式,在第六种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)、不占用子帧5中的资源元素集合(k,l)、不占用子帧5中的第二个时隙内的资源元素集合(ka,la)、不占用子帧5中的第二个时隙内的资源元素集合(kb,lb);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素集合(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除,资源元素(k,l)、资源元素(ka,la)、资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、
公共参考信号传输所用的资源元素外的资源元素上进行映射。
基于第一方面,或第一方面的第一至六种可能的实施方式,在第七种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)和子帧5中的资源元素(k,l);
其中,若PBCH在子帧5中重复传输一次,所述PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素相同;
若PBCH在子帧5中重复传输两次,一次PBCH重复传输的PBCH在子帧5中映射所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素位置相同,另一次PBCH重复传输的PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素位置相同。
基于第一方面,或第一方面的第一至七种可能的实施方式,在第八种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)中的48个资源元素;
所述重复传输的PBCH在子帧0中重复传输一次,所述重复传输的PBCH在子帧0和子帧5中重复一次,所述重复传输的PBCH在子帧5中重复一次;
或者,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的48个资源元素、正常
PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面,或第一方面的第一至七种可能的实施方式,在第九种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的所有资源元素;
所述重复传输的PBCH在子帧0中重复传输一次,在子帧5中重复传输一次;
或者所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且,所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(ka,la)中的所有资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面,或第一方面的第一至七种可能的实施方式,在第十种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素以及子帧0中的资源元素(k,l);或,
所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复传输的的PBCH的映射不占用子帧5中的资源元素(k,l);或,
所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且所述重复传输的PBCH在子帧5
的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面,或第一方面的第一至十种可能的实施方式,在第十一种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面,或第一方面的第一至十一种可能的实施方式,在第十二种可能的实施方式中,所述方法中系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la)、子帧5中的第二个时隙内的资源元素(kb,lb);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中及子帧5的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中:除子帧0中资源元素集合(k,l)、子帧5中资源元素集合集合(k,l)、子帧5中资源元素集合(ka,la)、子帧5中资源元素集合(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面的第一种可能的实施方式,在第十三种可能的实施方式中,所述重复传输的PBCH在子帧0内进行重复传输,子帧0采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个资源元素,N是12的倍数;特别地,所述PBCH不占用子帧0中的第一个时隙内的或者第二个时隙内的符号4和符号5中的每个符号上的N/2个资源元素。
基于第一方面的第一种可能的实施方式,在第十四种可能的实施方式中,所述重复传输的PBCH在子帧0内和/或子帧5内进行重复传输,所述子帧0和/或子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,子帧5中的资源元素(k,l)中的P×6个资源元素,子帧5中的第二
个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,min是最小值函数,其中,L,P,Q是偶数。
基于第一方面的第一种可能的实施方式,在第十五种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,和重复传输的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素。L,P是偶数,L和P可以相同,也可以不同;
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第一方面的第三种可能的实施方式,在第十六种可能的实施方式,所述方法中系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个元素、不占用子帧5中的资源元素(k,l)中的M个元素、不占用子帧5中的第二个时隙内的资源元素(ka,la)中的K个元素。第二方面,本发明实施例提供了一种基站,所述基站包括发送单元、接收单元、控制单元。发送单元用于重复传输PBCH;控制单元用于控制所述发送单元将重复传输的PBCH在子帧0和/或子帧5中映射;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源
元素的频率和时间位置,k,l是变量。
基于第二方面,在第一种可能的实施方式中,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS
数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
基于第二方面的第一种可能的实施方式,在第二种可能的实施方式中,所
述重复传输的PBCH在子帧0内进行重复传输,所述子帧0是指用于PBCH重复传输的无线帧内的子帧0;
所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中的,除子帧0中的资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;其中,一个子帧内第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal),通过(ktotal,ltotal)确定资源元素集合中资源元素的频率和时间位置,
对于正常循环前缀:ltotal=l',l'+1,...,6 for ns mod 2=0or ns=0;
对于扩展循环前缀:ltotal=l',l'+1,...,5 for ns mod 2=0or ns=0;
对于正常循环前缀:total=0,1,...,6 for ns mod 2=1or ns=1;
对于扩展循环前缀:ltotal=0,1,...,5 for ns mod 2=1or ns=1。
基于第二方面的第一种可能的实施方式,在第三种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)中的L×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的资源元素(k,l)中的P×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,其中,min是最小值函数,L,P,Q是偶数整数;
其中,一个子帧第二个时隙内的资源元素集合(ka,la)通过如下的任意一个方法确定,ka是频域子载波的索引,la是OFDM符号的索引:
方法1:
对于正常循环前缀:la=2,3;
对于扩展循环前缀:la=1,2;
方法2;
对于正常循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置1,2,3,6,7,8所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置1,2,3所配置的CSI-RS占用的资源元素。
对于扩展循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置16,17,18,19,20,21所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置16,17,18所配置的CSI-RS占用的资源元素。
基于第二方面的第三种可能的实施方式,在第四种可能的实施方式中,所述子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射还不
占用子帧5中的第二个时隙内的资源元素(kb,lb)中的min(R,24)×6个资源元素,其中,min是最小值函数,R是偶数整数;
其中,一个子帧第二个时隙内的资源元素集合(kb,lb)通过如下的任意一个方法确定,kb是频域子载波的索引,lb是OFDM符号的索引:
方法1:
lb=1,3
方法2:
资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置20,21,22,23,24,25所配置的CSI-RS占用的资源元素;或,上述资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置20,21,22所配置的CSI-RS占用的资源元素。
基于第二方面的第三或第四种可能的实施方式,在第五种可能的实施方式中,所述L,P,Q,R的值是预先规定的值或信令配置的值。
基于第二方面的第五种可能的实施方式,在第六种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)、不占用子帧5中的资源元素集合(k,l)、不占用子帧5中的第二个时隙内的资源元素集合(ka,la)、不占用子帧5中的第二个时隙内的资源元素集合(kb,lb);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素集合(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)、资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射。
基于第二方面,或第二方面的第一至六种可能的实施方式,在第七种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)和子帧5中的资源元素(k,l);
其中,若PBCH在子帧5中重复传输一次,所述PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素相同;
若PBCH在子帧5中重复传输两次,一次PBCH重复传输的PBCH在子帧5中映射所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素位置相同,另一次PBCH重复传输的PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素位置相同。
基于第二方面,或第二方面的第一至七种可能的实施方式,在第八种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)中的48个资源元素;
所述重复传输的PBCH在子帧0中重复传输一次,所述重复传输的PBCH
在子帧0和子帧5中重复一次,所述重复传输的PBCH在子帧5中重复一次;
或者,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的48个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面,或第二方面的第一至七种可能的实施方式,在第九种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的所有资源元素;
所述重复传输的PBCH在子帧0中重复传输一次,在子帧5中重复传输一次;
或者所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且,所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(ka,la)中的所有资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面,或第二方面的第一至七种可能的实施方式,在第十种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧5中的第二个时
隙内的资源元素(ka,la)中的96个资源元素以及子帧0中的资源元素(k,l);或,
所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复传输的的PBCH的映射不占用子帧5中的资源元素(k,l);或,
所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面,或第二方面的第一至十种可能的实施方式,在第十一种可能的实施方式中,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面,或第二方面的第一至十一种可能的实施方式,在第十二种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la)、子帧5中的第二个时隙内的资源元素(kb,lb);
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中及子帧5的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中:除子帧0中资源元素集合(k,l)、子帧5中资源元素集合集合(k,l)、子帧5中资源元素集合(ka,la)、子帧5中资源元素集合(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面的第一种可能的实施方式,在第十三种可能的实施方式中,所述重复传输的PBCH在子帧0内进行重复传输,子帧0采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个资源元素,N是12的倍数;特别地,所述PBCH不占用子帧0中的第一个时
隙内的或者第二个时隙内的符号4和符号5中的每个符号上的N/2个资源元素。
基于第二方面的第一种可能的实施方式,在第十四种可能的实施方式中,所述重复传输的PBCH在子帧0内和/或子帧5内进行重复传输,所述子帧0和/或子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,子帧5中的资源元素(k,l)中的P×6个资源元素,子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,min是最小值函数,其中,L,P,Q是偶数。
基于第二方面的第一种可能的实施方式,在第十五种可能的实施方式中,所述重复传输的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,和重复传输的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素。L,P是偶数,L和P可以相同,也可以不同;
或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
基于第二方面的第三种可能的实施方式,在第十六种可能的实施方式,所述方法中系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用扩展循环前缀;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个
元素、不占用子帧5中的资源元素(k,l)中的M个元素、不占用子帧5中的第二个时隙内的资源元素(ka,la)中的K个元素。第三方面,本发明实施例提供了一种基站,所述基站包括发射机、接收机、存储器以及分别与发射机、接收机和存储器连接的处理器;其中,存储器中存储一组程序代码,且处理器用于调用存储器中存储的程序代码,用于执行以下操作:
通过发射机向UE重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
基于第三方面,在第一种可能的实施方式中,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8
时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
本发明实施例提供的PBCH重复传输的方法,在确定需要对所述用户设备进行MIB重复传输后,在物理广播信道PBCH内进行MIB重复传输,其中PBCH映射在子帧0和/或子帧5中,并且,所述PBCH映射不占用子帧0中的资源元素(k,l),通过本发明实施例,可以实现需要接收重复传输的PBCH的UE可以接收重复的PBCH时,正常UE也可以接收CSI-RS。
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例中的一种资源元素示意图;
图2是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图3是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图4是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图5是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图6是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图7是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图8是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图9是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图10是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图11是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图12是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图13是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图14是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图15是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图16是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射
参考图;
图17是本发明实施例提供的PBCH重复传输的方法中一种资源元素映射参考图;
图18是本发明实施例提供的基站的一种实施例的结构图;
图19是本发明实施例提供的基站的另一种实施例的结构图。
现有LTE或LTE-A系统中,时域资源被划分为无线帧,无线帧按照0~1023编号。一个无线帧包含10个子帧,一个子帧的时间长度是1ms,每个无线帧内的子帧按照0~9编号,每个子帧包含两个时隙,第一个时隙和第二个时隙。对一个无线帧内的时隙按照0~19编号,记为ns。对于正常循环前缀(Cyclic Prefix,CP)每个时隙包含7个编号从0到6的OFDM符号;对于扩展循环前缀,每个时隙包含编号为0到5的6个OFDM符号。
如图1所示,在频域,一个资源元素(Resource Element,RE)为一个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号中的一个子载波,若LTE系统采用正常循环前缀的子帧,则一个下行资源块(Resource Block,RB)由连续12个子载波和连续7个OFDM符号构成;若LTE系统采用扩展循环前缀的子帧,则一个RB由连续12个子载波和连续6个OFDM符号构成,在频域上为180kHz,时域上为一个时隙的时间长度,在资源分配时,以资源块为基本单位进行分配。
为了描述方便,本发明中将需要接收重复传输的PBCH的UE称为第一UE,以和正常UE(normal UE)或传统UE(legacy UE)进行区分。更具体的,
首先,确定一个子帧内的资源元素(k,l),k是子载波的索引,l是符号的
索引,(k,l)确定资源元素的频率和时间位置。因为k,l是变量,这里的资源元素(k,l)包含了多个资源资源,即资源元素(k,l)可以看做一个资源元素集合。
其中k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值。
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目(Number of CSI reference signals configured)或CSI-RS天线端口数目(antennaPortsCount)是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的
CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的
CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端
口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
确定一个子帧内第一个时隙(或偶数时隙)内资源元素(ktotal,ltotal)和第二个时隙(或奇数时隙)内资源元素(ktotal,ltotal),(ktotal,ltotal)确定资源元素的频率和时间位置。因为ktotal,ltotal是变量,这里的资源元素(ktotal,ltotal)包含了多个资源资源,即资源元素(ktotal,ltotal)可以看做一个资源元素集合。ktotal、ltotal的取值等于下述公式计算出的k,l取值,且公式中l'是已知的整数。
对于正常循环前缀:ltotal=l',l'+1,...,6 for ns mod 2=0or ns=0;
对于扩展循环前缀:ltotal=l',l'+1,...,5 for ns mod 2=0or ns=0;
对于正常循环前缀:ltotal=0,1,...,6 for ns mod 2=1or ns=1;
对于扩展循环前缀:ltotal=0,1,...,5 for ns mod 2=1or ns=1。
确定一个子帧第二个时隙内的资源元素(ka,la),ka是子载波的索引,la是符号的索引。(ka,la)确定资源元素的频率和时间位置。因为ka,la是变量,这里的资源元素(ka,la)包含了多个资源资源,即资源元素(ka,la)可以看做一个资源元素集合。其中ka,la取值等于下述公式计算出的ka,la取值:
对于正常循环前缀:la=2,3;
对于扩展循环前缀:la=1,2。
或,对于正常循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,资源元素(ka,
la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置1,2,3,6,7,8所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置1,2,3所配置的CSI-RS占用的资源元素。
或,对于扩展循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置16,17,18,19,20,21所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置16,17,18所配置的CSI-RS占用的资源元素。
确定一个子帧第二个时隙内的资源元素(kb,lb),kb是子载波的索引,lb是符号的索引。(kb,lb)确定资源元素的频率和时间位置。因为kb,lb是变量,这里的资源元素(kb,lb)包含了多个资源资源,即资源元素(kb,lb)可以看做一个资源元素集合。其中kb,lb取值等于下述公式计算出的kb,lb取值:
lb=1,3
或,正常循环前缀时,资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,资
源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置20,21,22,23,24,25所配置的CSI-RS占用的资源元素;或,上述资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置20,21,22所配置的CSI-RS占用的资源元素。
本发明实施例中,帧结构类型1是指频分双工或频分半双工,帧结构类型2是指时分双工。重复的PBCH在子帧0内进行重复,子帧0是指用于PBCH重复传输的无线帧内的子帧0。重复的PBCH在子帧5内进行重复,子帧5是指用于PBCH重复传输的无线帧内的子帧5。
本发明中的附图只给出了重复的PBCH在一个物理资源块PRB对中PBCH所占用的资源元素。实际上,重复的PBCH需要在6个PRB对中映射和传输,重复的PBCH在6个PRB对中每个PRB对内占用的资源元素与附图示意的在一个物理资源块PRB对中占据的资源元素相同。
本发明中,重复的PBCH在一个或多个符号占据N个资源元素是指:重复的PBCH在频率域6个PRB内一个或多个符号上占据N个资源元素。特别地,重复的PBCH在频率域一个PRB内一个或多个符号上占据N/6个资源元素。这里,/是除法运算符号。
另外,公共参考信号占据的资源元素与小区标识号Cell ID有关,而重复的PBCH占据的资源元素要避开公共参考信号占据的资源元素,所以重复的PBCH实际占据的资源元素也与Cell ID有关。本发明中,如无特殊说明,本发明附图是以cell ID mod 3等于第一值(比如cell ID mod 3=0)为例例示重复的PBCH所占据的资源元素。对于cell ID mod 3等于其它值(比如cell ID mod 3=1或cell ID mod 3=2)时,重复的PBCH所占据的资源元素是对cell ID mod 3等于第一值时的重复的PBCH所占据的资源元素在频率上偏移得出。
另外,重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的N1个资源元素,和/或不占用子帧5中的资源元素(k,l)中的N2个资源元素、不
占用子帧5中的第二个时隙内的资源元素(ka,la)中的N3个资源元素、不占用子帧5中的第二个时隙内的资源元素(kb,lb)中的N4个资源元素。对于不同小区,N1、N2、N3、N4的取值可以相同,也可以不相同。不同小区中的不同基站通过PBCH进行MIB重复传输时映射的资源元素,可以相同,也可以不相同。
本发明实施例的核心思想为,在确定需要对所述用户设备进行主要信息块MIB重复传输后,在物理广播信道PBCH内进行主要信息块重复传输,其中所述PBCH映射在子帧0和/或子帧5中,并且,所述PBCH映射不占用子帧0中的资源元素集合(k,l),其中,k是频域子载波的索引,l时域OFDM符号的索引,(k,l)确定资源元素集合中资源元素的频率和时间位置,k,l是变量;可参见前面对各个参数的解释。
本发明实施例中,为了描述更加简单,将MIB重复传输,称之为重复的PBCH重复,重复的PBCH的映射等同于重复的PBCH的传输,PBCH用于承载MIB。例如MIB在子帧0内进行重复传输,称之为重复的PBCH在子帧0内进行重复,所述领域的技术人员应当理解。
实施例一
在该实施例中,系统的帧结构是帧结构类型1(也就是说,基站工作在频分双工或半频分双工模式)或帧结构类型2(基站工作在时分双工模式)。重复的PBCH在子帧0内进行重复,子帧0采用正常循环前缀。这里,子帧0是指用于PBCH重复传输的无线帧内的子帧0。
其中,重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)。
更具体的,重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
例如,规定l'=3或4,在(ktotal,ltotal)确定的资源元素中除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的所有资源元素或所有资源元素中的240个资源元素上进行重复PBCH的映射或传输。具体地,对于系统的帧结构是帧结构类型1的情况,重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、第二个时隙内的符号4、第二个时隙内的符号5、第二个时隙内的符号6中的M个符号上的N个资源元素。特别地,M=4或5,N=192或240或264。如,M=5,N=264,在子帧0内重复的PBCH在第一个时隙内的符号3上占据72个资源元素,在第一个时隙内的符号4、第二个时隙内的符号4、第二个时隙内的符号5、和第二个时隙内的符号6中的每个符号上占据48个资源元素。再如,M=5,N=240,在子帧0内重复的PBCH在第一个时隙内的符号3、第一个时隙内的符号4、第二个时隙内的符号4、第二个时隙内的符号5、和第二个时隙内的符号6中的每个符号上占据48个资源元素。再如,M=4,N=192,在子帧0内重复的PBCH在第一个时隙内的符号4、第二个时隙内的符号4、第二个时隙内的符号5、和第二个时隙内的符号6中的每个符号上占据48个资源元素。图2示意了重复的PBCH在子帧0内一个用于PBCH重复的物理资源块对中的映射或传输的方法。需要说明的是,本发明中的附图都是以一个物理资源块PRB对中来说明重复的PBCH所占用的资源元素。实际上,重复的PBCH需要在6个PRB对中映射和传输,重复的PBCH在6个PRB对中每个PRB对内占用的资源元素与附图示意的在一个物理资源块PRB对中占据的资源元素相同。
图2b是小区cell ID mod 3=0时重复的PBCH所占用的资源元素;图2c是小区cell ID mod 3=1时重复的PBCH所占用的资源元素。这里mod是求模运算。图2a、2b、2c是l'=3时重复的PBCH所占用的资源元素。图2d是l'=4时重复的PBCH所占用的资源元素。
具体地,对于系统的帧结构是帧结构类型2的情况,重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4、第二个时隙内的符号5中的M*个符号上的N*个资源元素。特别地,M*=6或5或4,N*=240或336。如,M*=6,N*=336,在子帧0内重复的PBCH在第一个时隙内的符号3和第二个时隙内的符号5中的每个符号上占据72个资源元素,在第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4中的每个符号上占据48个资源元素。再如,M*=4,N*=240,在子帧0内重复的PBCH在第一个时隙内的符号3和第二个时隙内的符号5中的每个符号上占据72个资源元素,在第一个时隙内的符号4和第二个时隙内的符号4中的每个符号上占据48个资源元素。再如,M*=5,N*=240,在子帧0内重复的PBCH在第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4中的每个符号上占据48个资源元素。图3示意了重复的PBCH在子帧0内一个用于PBCH重复的物理资源块对中的映射或传输的方法。
需要说明的是,在子帧0内第一个时隙中的每个用于PBCH重复的物理资源块中的符号3,和/或第二个时隙中的每个用于PBCH重复的物理资源块中的符号5中除去用于重复的PBCH的8个资源元素外的其它4个资源元素可以用做参考信号。如,用作重复PBCH的参考信号。
实施例二:
重复的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用正常循环前缀。本实施例中,子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的L×6个
资源元素,重复的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素,重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(kb,lb)中的min(R,24)×6个资源元素,min是最小值函数。这里,L,P,Q,R是整数。特别的,L,P,Q,R是偶数;特别的,L,P,Q,R是4的倍数。
表1例举了L,P,Q,R的可能取值。每种L,P,Q,R的取值由下表中一个取值索引所指示。
表格1:L,P,Q的取值
表1
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除子帧0中的资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、子帧5资源元素(ka,la)中的min(Q,24)×6个资源元素、子帧5资源元素(kb,lb)中的min(R,24)×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
实施例三
在本实施例中,系统的帧结构是帧结构类型1或帧结构类型2,重复的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用正常循环前缀。本实施例中,子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、不占用子帧5中的第二个时隙内的资源元素(ka,la)、不占用子帧5中的第二个时隙内的资源元素(kb,lb)。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)、资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源
元素外的资源元素上进行映射或传输。
例如,对于系统的帧结构是帧结构类型1的情况,在子帧5中重复的PBCH映射或传输时,重复的PBCH映射或传输占据第一个时隙内的符号3、第一个时隙内的符号4、第二个时隙内的符号0、第二个时隙内的符号4、第二个时隙内的符号5和第二个时隙内的符号6中的240个资源元素。
还例如,对于系统的帧结构是帧结构类型1的情况,在子帧5中重复的PBCH映射或传输时,重复的PBCH映射或传输占据第一个时隙内的符号4、第二个时隙内的符号0、第二个时隙内的符号4、第二个时隙内的符号5和第二个时隙内的符号6中的5个符号中的240个资源元素。例如,重复的PBCH在子帧5内每个用于PBCH重复的物理资源块对中的上述5个符号中的每一个符号上的8个资源元素上进行映射或传输。
还例如,对于系统的帧结构是帧结构类型2的情况,在子帧5中重复的PBCH映射或传输时,重复的PBCH映射或传输占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号0、第二个时隙内的符号4、第二个时隙内的符号5中的240个资源元素。
还例如,对于系统的帧结构是帧结构类型2的情况,在子帧5中重复的PBCH映射或传输时,重复的PBCH映射或传输占据第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号0、第二个时隙内的符号4中的5个符号中的240个资源元素。例如,重复的PBCH在子帧5内每个用于PBCH重复的物理资源块对中的上述5个符号中的每一个符号上的8个资源元素上进行映射或传输。
重复的PBCH一种映射或传输的方式如图4所示为:重复的PBCH在子帧0中重复一次,在子帧5中重复一次。在子帧0中重复的PBCH映射或传输的方法同实施例一中方法所述;在子帧5中重复的PBCH映射或传输所用
的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素相同。这里的资源元素相同,可以指的是在时频资源上资源元素的位置相同。
重复的PBCH另一种映射或传输的方式为:
重复的PBCH在子帧0中重复一次,在子帧5中重复一次。在子帧0中重复的PBCH映射或传输的方法同实施例一中方法所述;在子帧5中重复的PBCH映射或传输所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素不相同。
图5示意了一种在子帧0中重复的PBCH映射和子帧5中重复的PBCH映射不相同的方法。
实施例四
本实施例中,系统的帧结构是帧结构类型1,重复的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用正常循环前缀。本实施例中,子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5。
实施例四的第一种方法:
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)和重复的PBCH映射或传输不占用子帧5中的资源元素(k,l)。
在本方法中,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧5中重复一次或两次。在子帧0中重复的PBCH映射或传输的方法如实施例一中所述。
若重复的PBCH在子帧5中重复一次,重复的PBCH在子帧5中的映射或传输所用的资源元素与子帧0中正常PBCH映射或传输所用的资源元素相同。
若重复的PBCH在子帧5中重复两次,一次重复的PBCH在子帧5中映射或传输所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元
素位置相同,另一次重复的PBCH在子帧5中的映射或传输所用的资源元素与子帧0中正常PBCH映射或传输所用的资源元素位置相同。示意图如图6所示。
实施例四的第二种方法:
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)中的48个资源元素。
例如,这48个资源元素是在重复的PBCH传输所用的6个物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,CSI参考信号配置1,CSI参考信号配置2,CSI参考信号配置3中的一个CSI参考信号配置所确定的用于CSI-RS的资源元素。即,在每个重复的PBCH传输所用的物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,CSI参考信号配置1,CSI参考信号配置2,CSI参考信号配置3中的一个CSI参考信号配置所确定的用于CSI-RS的8个资源元素不用于重复的PBCH传输。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)中的48个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
在本方法中,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧0和子帧5中重复一次,重复的PBCH在子帧5中重复一次。
例如,重复的PBCH在子帧0和子帧5中重复一次,该重复的PBCH占
用子帧0中第二个时隙的最后一个符号中的24个资源元素,或占用子帧0中第二个时隙的最后两个符号中的24个资源元素。即,重复的PBCH在子帧0中第二个时隙内每个用于PBCH重复的物理资源块中的最后一个符号上的4个资源元素上进行映射或传输或最后两个符号上的4个资源元素上进行映射或传输。
图7和图8例示了2种重复的PBCH在子帧0中和子帧5中映射或传输的示意图。
实施例四的第三种方法:
重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(ka,la)中的所有资源元素。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(ka,la)中的所有资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
在本方法中,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧0和子帧5中重复一次,重复的PBCH在子帧5中重复一次。
例如重复的PBCH在子帧0和子帧5中重复一次,该重复的PBCH占用子帧0中第二个时隙的最后一个符号中的72个资源元素,或占用子帧0中第二个时隙的最后两个符号中的72个资源元素。即,重复的PBCH在子帧0中第二个时隙内每个用于PBCH重复的物理资源块中的最后一个符号上的12个资源元素上进行映射或传输或最后两个符号上的12个资源元素上进行映
射或传输。
图9所示,给出了重复的PBCH在子帧0中和子帧5中映射或传输的示意图,以供参考。
实施例四的第四种方法:
重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复的PBCH映射或传输不占用子帧0中的资源元素(k,l);或,
重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复的PBCH映射或传输不占用子帧5中的资源元素(k,l)。
例如,这96个资源元素是在重复的PBCH传输所用的6个物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,CSI参考信号配置1,CSI参考信号配置2,CSI参考信号配置3中的两个CSI参考信号配置所确定的用于CSI-RS的资源元素。即,在每个重复的PBCH传输所用的物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,CSI参考信号配置1,CSI参考信号配置2,CSI参考信号配置3中的两个CSI参考信号配置所确定的用于CSI-RS的16个资源元素不用于重复的PBCH传输。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
或,重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
如图10所示,在本方法中,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧0和子帧5中重复一次,重复的PBCH在子帧5中重复一次。例如,重复的PBCH在子帧0和子帧5中重复一次,该重复的PBCH可以占用子帧0中第二个时隙的最后一个符号中的24个资源元素,或占用子帧0中第二个时隙的最后两个符号中的24个资源元素。即,重复的PBCH在子帧0中第二个时隙内每个用于PBCH重复的物理资源块中的最后一个符号上的4个资源元素上进行映射或传输或最后两个符号上的4个资源元素上进行映射或传输。
实施例四的第五种方法:
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及重复的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,
l)、资源元素(ka,la)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
在本方法中,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧5中重复1.5次。
例如,在子帧0中重复的PBCH映射或传输方法如实施例一中所述。
子帧5中重复的PBCH映射或传输所用的资源元素是第一个时隙内符号3上的72个资源元素,第一个时隙内符号4、第二个时隙内符号0、第二个时隙内符号1、第二个时隙内符号4、第二个时隙内符号5、第二个时隙内符号6中的每个符号内的48个资源元素。
图11示意了一种重复的PBCH映射或传输的示意图,子帧5中1.5次重复的PBCH映射或传输所用的资源元素是第一个时隙内符号3上的72个资源元素,第一个时隙内符号4、第二个时隙内符号0、第二个时隙内符号1、第二个时隙内符号4、第二个时隙内符号5、第二个时隙内符号6中的一个符号内的48个资源元素。
实施例五
本实施例中,系统的帧结构是帧结构类型2,重复的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用正常循环前缀。本实施例中,子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、不占用子帧5中的第二个时隙内的资源元素(ka,la)、不占用子帧5中的第二个时隙内的资源元素(kb,lb)。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个
时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)、子帧5中资源元素(k,l)、子帧5中资源元素(ka,la)、子帧5中资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
重复的PBCH在子帧0和子帧5中共重复三次。其中,一次重复的PBCH在子帧0中,一次重复的PBCH在子帧5中,一次重复的PBCH在子帧0和子帧5中。
一次重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4、第二个时隙内的符号5中的M’个符号上的N’个资源元素。如,M’=4或5或6,N’=240。例如,在子帧0的一次重复的PBCH占据第一个时隙内的符号3上的72个资源元素,占据第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4、第二个时隙内的符号5中的3个符号的每个符号上的48个资源元素,占据第二个时隙内的符号4、第二个时隙内的符号5中的1个符号上的24个资源元素。再例如,在子帧0的一次重复的PBCH占据第一个时隙内的符号3、第二个时隙内的符号5中每个符号上的72个资源元素,占据第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号4中的2个符号的每个符号上的48个资源元素。
一次重复的PBCH在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号0、第二个时隙内的符号4、第二个时隙内的符号5中的M”个符号上的N”个资源元素。如,M”=4或5或6或7,N’=240。例如,在子帧5的一次重复的PBCH占据第一个时隙内的符号3、第二个时隙内的符号5中的一个符号上的72个资源元素,占据第一个时隙内的符号4、第一个时隙内的符
号5、第一个时隙内的符号6、第二个时隙内的符号0、第二个时隙内的符号4、第二个时隙内的符号5中的3个符号的每个符号上的48个资源元素,以及其中的1个符号上的24个资源元素。再例如,在子帧5的一次重复的PBCH占据第一个时隙内的符号3、第二个时隙内的符号5中每个符号上的72个资源元素,占据第一个时隙内的符号4、第一个时隙内的符号5、第一个时隙内的符号6、第二个时隙内的符号0、第二个时隙内的符号4中的2个符号的每个符号上的48个资源元素。
一次重复的PBCH在子帧0和子帧5中映射或传输,其中:该次重复的PBCH占据子帧0内的两个符号中的每个符号上的S1个资源元素;或占据子帧0内的一个符号上的S2个资源元素,另一个符号上的S3个资源元素。如,S1=48,S2=72,S3=24。该次重复的PBCH占据子帧5内的三个符号中的每个符号上的S1个资源元素;或该次重复的PBCH占据子帧5内的三个符号中的一个符号上的S1个资源元素、一个符号上的S2个资源元素、一个符号上的S3个资源元素。
图12中的a,b,c,d分别例示了重复的PBCH在子帧0内的一个PRB对和在子帧5内的一个PRB对上映射的方法。
实施例六
本实施例中,系统的帧结构是帧结构类型1或帧结构类型2,重复的PBCH在子帧0内进行重复,子帧0采用扩展循环前缀。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的N个资源元素,N是12的倍数。特别地,重复的PBCH映射或传输不占用子帧0中的第一个时隙内的或者第二个时隙内的符号4和符号5中的每个符号上的N/2个资源元素。
这N个资源元素是在重复的PBCH传输所用的6个物理资源块对中,
(N/12)个2天线或1天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(N/24)个4天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(N/48)个8天线端口的CSI-RS配置确定的用于CSI-RS的资源元素。例如,N=48,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型1时CSI参考信号配置2或CSI参考信号配置3所确定的用于CSI-RS的资源元素。再例如,N=48,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型2时CSI参考信号配置0或CSI参考信号配置1所确定的用于CSI-RS的资源元素。
重复的PBCH子帧0内以符号l'为起始,在(ktotal,ltotal)确定的资源元素中除上述(k,l)中的N个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。特别地,l'=3。
例如,对于系统的帧结构是帧结构类型1,重复的PBCH在子帧0中占据第一个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的M个符号上的N个资源元素。特别地,M=2或3,N=168或144或120或96。如,M=3,N=96,在子帧0内一次重复的PBCH在第一个时隙内的符号3上占据48个资源元素,在第二个时隙内的符号4和符号5中的每个符号上占据24个资源元素。如,M=3,N=144,在子帧0内一次重复的PBCH在第一个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的每个符号上占据48个资源元素。如,M=3,N=168,在子帧0内一次重复的PBCH在第一个时隙内的符号3上占据48个资源元素,在第二个时隙内的符号4和符号5中的每个符号上占据60个资源元素。如,M=2,N=96或120,在子帧0内一次重复的PBCH在第二个时隙内的符号4、和第二个时隙内的符号5中的每个符号上占据48或60个资源元素。图13a、13b、图13c分别示意了l'=3时,在子帧0中进行重复的PBCH映射或传输的方法。
例如,对于系统的帧结构是帧结构类型2,重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第二个时隙内的符号4中的M个符号上的N个资源元素。特别地,M=4,N=168或216或240。在子帧0内一次重复的PBCH在在第一个时隙内的符号3上占据48个资源元素,在第二个时隙内的符号4上占据72个资源元素,在第一个时隙内的符号4和第一个时隙内的符号5中的每个符号上占据24或48或60个资源元素。图13d、13e、图13f分别示意了l'=3时,在子帧0中进行重复的PBCH映射或传输的方法。
实施例七
本实施例中,系统的帧结构是帧结构类型1或帧结构类型2,重复的PBCH在子帧0内和/或子帧5内进行重复,子帧0和/或子帧5采用扩展循环前缀。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的L×6个资源元素,重复的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素,重复的PBCH映射或传输不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,min是最小值函数。这里,L,P,Q是偶数。特别地L,P,Q是是4的倍数。
例如,L,P,Q的取值由下表2中一个取值索引所指示。
表格:L,P,Q的取值:
表2
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、子帧5中资源元素(ka,la)中的min(Q,24)×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
具体的,重复的PBCH在子帧0中第一个时隙或者第二个时隙内每个用于PBCH重复的物理资源块中的最后两个符号中的每一个符号上的(12-L/2)个资源元素上进行映射或传输,或最后两个符号上的(24-L)个资源元素上进行映射或传输;重复的PBCH在子帧5中第一个时隙或者第二个时隙内每个用于PBCH重复的物理资源块中的最后两个符号中的每一个符号上的(12-P/2)个资源元素上进行映射或传输,或最后两个符号上的(24-P)个资源元素上进行映射或传输;重复的PBCH在子帧5中第二个时隙内每个用于PBCH重复的物理资源块中的符号1和符号2中的每一个符号上的(12-Q/2)个资源元素上进行映射或传输,或符号1和符号2上的(24-Q)个资源元素上进行映射或传输。
实施例八
本实施例中,系统的帧结构是帧结构类型1或帧结构类型2。重复的
PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀。
一种重复的PBCH映射或传输的方式为:重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的L×6个资源元素,和重复的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素。L,P是偶数,L和P可以相同,也可以不同。特别地,L等于2或4或8或16,P等于2或4或8或16。
这L×6个资源元素是在重复的PBCH传输所用的6个物理资源块对中,(L/2)个2天线或1天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(L/4)个4天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(L/8)个8天线端口的CSI-RS配置确定的用于CSI-RS的资源元素。这P×6个资源元素是在重复的PBCH传输所用的6个物理资源块对中,(P/2)个2天线或1天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(P/4)个4天线端口的CSI-RS配置确定的用于CSI-RS的资源元素,或(P/8)个8天线端口的CSI-RS配置确定的用于CSI-RS的资源元素。
特别地,当L等于8或P等于8时,这L×6个或P×6个资源元素是在重复的PBCH传输所用的6个物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型1时的CSI参考信号配置2或CSI参考信号配置3所确定的用于CSI-RS的资源元素,或者系统的帧结构是帧结构类型2时的CSI参考信号配置0或CSI参考信号配置1所确定的用于CSI-RS的资源元素。即,在每个重复的PBCH传输所用的物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型1时的CSI参考信号配置2或CSI参考信号配置3所确定的用于CSI-RS的8个资源元素不用于重复的PBCH传输,或者系统的帧结构是帧结构类型2时的CSI参考信号配置0或CSI参考信号配置1所确定的用于CSI-RS的8个资源元素不用于重复的PBCH传输。
特别地,当L等于16或P等于16时,这L×6个或P×6个资源元素是在重复的PBCH传输所用的6个物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型1时的CSI参考信号配置2和CSI参考信号配置3所确定的用于CSI-RS的资源元素,或者系统的帧结构是帧结构类型2时的CSI参考信号配置0和CSI参考信号配置1所确定的用于CSI-RS的资源元素。即,在每个重复的PBCH传输所用的物理资源块对中,CSI-RS数目或CSI-RS天线端口数目为8的情况下,系统的帧结构是帧结构类型1时的CSI参考信号配置2和CSI参考信号配置3所确定的用于CSI-RS的16个资源元素不用于重复的PBCH传输,或者系统的帧结构是帧结构类型2时的CSI参考信号配置0和CSI参考信号配置1所确定的用于CSI-RS的16个资源元素不用于重复的PBCH传输。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
例如,重复的PBCH在子帧0中重复一次,重复的PBCH在子帧5中重复一次或两次。在子帧0中重复的PBCH映射或传输的方法如实施例六中所述。
若重复的PBCH在子帧5中重复一次,重复的PBCH在子帧5中的映射或传输所用的资源元素与子帧0中正常PBCH映射或传输所用的资源元素相同。
若重复的PBCH在子帧5中重复两次,一次重复的PBCH在子帧5中映射或传输所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元
素位置相同,另一次重复的PBCH在子帧5中的映射或传输所用的资源元素与子帧0中正常PBCH映射或传输所用的资源元素位置相同。
例如,可以在子帧0内进行一次重复的PBCH传输,在子帧5内进行两次重复的PBCH传输。在子帧0内进行一次重复的PBCH传输方法可以如实施例六中方法所述。
当系统的帧结构是帧结构类型1时,一次重复的PBCH在子帧5中占据第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号1、第二个时隙内的符号2、第二个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的M个符号上的N个资源元素。特别地,M=3或4,N=144或180或168。在子帧5内一次重复的PBCH在在第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号1中的每个符号上占据48个资源元素。该次重复的PBCH还可以在第二个时隙的符号2占用36个资源元素。在子帧5内另一次重复的PBCH在第二个时隙内的符号2上占据72或36个资源元素,在第二个时隙内的符号3占据48个资源元素,在第二个时隙内的符号4、和第二个时隙内的符号5中的每个符号上占据24或48个资源元素。如图14a、14b所示。
当系统的帧结构是帧结构类型2时,一次重复的PBCH在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第二个时隙内的符号0、第二个时隙内的符号1、第二个时隙内的符号2、第二个时隙内的符号3、第二个时隙内的符号4中的M个符号上的N个资源元素。特别地,M=3或4或5,N=192或216。在子帧5内一次重复的PBCH在第一个时隙内的符号3、第二个时隙内的符号0中的每个符号上占据48个资源元素,在第一个时隙内的符号4、第一个时隙内的符号5中的每个符号上占据24或者48个资源元素。另外,该次重复的PBCH还可以在第二个时隙的符号1占用24或48个资源元素。在子帧5内另一次重复的PBCH在第二个时
隙内的符号2和第二个时隙内的符号4的每个符号上占据72个资源元素,第二个时隙内的符号3上占据48个资源元素。另外,该次重复的PBCH还可以在第二个时隙的符号1占用24个资源元素。如图14c、14d所示。
进一步地,重复的PBCH映射或传输还不占用子帧5中资源元素(ka,la)中的min(Q,24)×6个资源元素。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、子帧5中资源元素(ka,la)中的min(Q,24)×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
本实施例中,基站可以在子帧0内进行一次重复的PBCH传输和在子帧5内进行另一次重复的PBCH传输;也可以在子帧0内和子帧5内进行一次重复的PBCH传输,和在子帧5内进行另一次重复的PBCH传输。
当系统的帧结构是帧结构类型1时:
重复的PBCH在子帧0中占据第一个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的M个符号上的N个资源元素。在子帧0的传输或映射方法举例如实施例六。
重复的PBCH在子帧5中占据第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的M*个符号上的N*个资源元素。特别地,M*=3或5。N*=144或240。如,M*=3,N*=144,在子帧5内一次重复的PBCH在第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的三个符号中的每个符号上占据48个资
源元素。再如,M*=5,N*=,240,子帧5内一次重复的PBCH在第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的每个符号上占据48个资源元素。
一次重复的PBCH在子帧0中占据第一个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的T1个符号上的X1个资源元素。并且,所述一次重复的PBCH还在子帧5中占据第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4、和第二个时隙内的符号5中的T2个符号上的X2个资源元素。特别地,X1+X2=240。一次重复的PBCH在子帧0第一个时隙内的符号3上占据48个资源元素,并且,所述一次重复的PBCH还占据子帧5第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号3中的一个符号上的48个资源元素。另外,该次重复的PBCH还占据子帧0第二个时隙的符号4、子帧0第二个时隙的符号5、子帧5第二个时隙的符号1、子帧5第二个时隙的符号2、子帧5第二个时隙的符号4、子帧5第二个时隙的符号5中一个或多个符号上的48个资源元素。
当系统的帧结构是帧结构类型2时:
重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、和第一个时隙内的符号5、第二个时隙内的符号4中的M个符号上的N个资源元素。M、N是预定义的整数。在子帧0的传输或映射方法举例如实施例六。
重复的PBCH在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、和第一个时隙内的符号5、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4中的M*个符号上的N*个资源元素。M*、N*是预定义的整数。特别的,M*=6,N*=240。例如,重复的PBCH在子帧5中占据第一个时隙内的符号3、第二个时隙内的符号0、第二个时隙内的符号
3中的每个符号上的48个资源元素,占据第二个时隙内的符号4中的72个资源元素。另外,重复的PBCH在子帧5中第一个时隙内的符号4、第一个时隙内的符号5中一共占据的24个资源元素。
一次重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、和第一个时隙内的符号5、第二个时隙内的符号4中的T1个符号上的X1个资源元素。并且,所述一次重复的PBCH还在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、和第一个时隙内的符号5、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4中的T2个符号上的X2个资源元素。T1、X1、T2、X2是预定义的整数。例如,T1=2,T2=4,X1=120,X2=216。重复的PBCH在子帧0第二个时隙的符号4、子帧5第二个时隙的符号4的每个符号上占据72个资源元素,在子帧0第一个时隙的符号3、在子帧5第一个时隙的符号3、在子帧5第二个时隙的符号0、在子帧5第二个时隙的符号3的每个符号上占据48个资源元素。
具体地,重复的PBCH一种映射或传输的方式为:
重复的PBCH在子帧0中重复一次,在子帧5中重复一次。在子帧0中重复的PBCH映射或传输的方法同实施例六中方法所述;在子帧5中重复的PBCH映射或传输所用的资源元素与上述子帧0中重复的PBCH映射或传输所用的资源元素相同。如,在子帧0中一次重复的PBCH映射采用实施例6中图13a(或图13b、c、d、e、f中的一个)所示的方法,在子帧5中一次重复的PBCH映射也采用图13a(或图13b、c、d、e、f中的一个)所示的方法。
再例如,重复的PBCH另一种映射或传输的方式为:
重复的PBCH在子帧0中重复一次,在子帧5中重复一次。在子帧5中重复的PBCH映射或传输所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素不相同。
例如,在子帧0中重复的PBCH映射或传输的方法同实施例六中方法所
述;在子帧5中重复的PBCH映射或传输的方法也按照实施例六中方法所述,只是把实施例六中的子帧0换成子帧5;但在子帧5中重复的PBCH映射或传输所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素不相同。如,在子帧0中一次重复的PBCH映射采用图13a(或图13b或图13c)所示的方法,在子帧5中一次重复的PBCH映射采用图13b(或图13a或图13c)所示的方法。
图15中,a,b,c,d,e示意了一种在子帧0中重复的PBCH映射和子帧5中重复的PBCH映射不相同的方法。
实施例九
本实施例中,系统的帧结构是帧结构类型2,重复的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀。
重复的PBCH映射或传输不占用子帧0中的资源元素(k,l)中的N个元素、不占用子帧5中的资源元素(k,l)中的M个元素、不占用子帧5中的第二个时隙内的资源元素(ka,la)中的K个元素。
重复的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的N个元素、子帧5中资源元素(k,l)中的M个元素、子帧5中资源元素(ka,la)中的K个元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输。
重复的PBCH在子帧0中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第二个时隙内的符号4中的Y个符号上的Z个资源元素。特别地,Y=4,Z=168。在子帧0内重复的PBCH在第一个时隙内的符号3上占据48个资源元素,在第一个时隙内的符号4和符号5中的每
个符号上占据24个资源元素,在第二个时隙内的符号4上占据72个资源元素。该次重复的PBCH还在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4中的Y’个符号上的Z’个资源元素。特别的Y’=1,Z’=48,在子帧5内该次重复的PBCH在第一个时隙内的符号3上占据48个资源元素。
重复的PBCH在子帧5中占据第一个时隙内的符号3、第一个时隙内的符号4、第一个时隙内的符号5、第二个时隙内的符号0、第二个时隙内的符号3、第二个时隙内的符号4中的Y”个符号上的Z”个资源元素。特别地,Y”=5,Z”=216。如,在子帧5内一次重复的PBCH在第一个时隙内的符号4和符号5中的每个符号上占据24个资源元素,在第二个时隙内的符号0和符号3中的每个符号上占据48个资源元素,在第二个时隙内的符号4上占据72个资源元素。
图16示意了本实施例中进行PBCH映射的资源元素图,可供参考。
通过上述的实施例可以实现,需要接收重复传输的PBCH的UE可以接收重复的PBCH时,正常UE也可以接收CSI-RS。
另外,在本发明的一种实施方式中,在PBCH传输或映射的每个物理资源块PRB中,在一个OFDM符号上用于PBCH传输或映射的资源元素的个数为偶数。本发明所述PRB还可以是资源块(Resource Block,RB)。
另外,在本发明的一种实施方式中,对于PBCH的符号y(p)(i)和y(p)(i+1),其中i和i+1表示符号序号,i是偶数,其在一个OFDM符号中映射的资源元素(K,L)和(K+n,L)满足n<3。其中,K是PBCH传输或映射的频域子载波的索引,L是PBCH传输或映射的正交频分复用OFDM符号的索引,n是正整数。(K,L)、(K+n,L)确定资源元素的频率和时间位置。
另外,在本发明的一种实施方式中,重复传输PBCH,其中重复传输的
PBCH在子帧0和/或子帧5中映射包括:
若子帧0和/或子帧5采用正常循环前缀,所述重复传输的PBCH的映射不占用子帧0和/或子帧5中每个子帧前x个符号内的资源元素;
若子帧0和/或子帧5采用扩展循环前缀,所述重复传输的PBCH的映射不占用子帧0和/或子帧5中每个子帧前y个符号内的资源元素;
其中,所述x、y是非负整数,x、y不相同。
具体的,在实施例一至实施例九中,若子帧0和/或子帧5采用正常循环前缀,l'=x+1;若子帧0和/或子帧5采用扩展循环前缀,l'=y+1。
对于正常循环前缀和扩展循环前缀,由于一个子帧包含的OFDM符号数不相同,通过x、y的值不相同,可以使得在正常循环前缀和扩展循环前缀的子帧,PBCH映射的资源元素的个数近似相同。
特别的,重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射包括:
所述重复传输的PBCH的映射不占用子帧0和/或子帧5中每个子帧前4个符号内的资源元素。
此外本发明实施例还提供了一种执行前述实施例中提供的方法的基站,如图17所示,其为本发明实施例所提供的一种基站的功能方块图。如图所示,该基站包括发送单元171、接收单元172、控制单元173。
发送单元171用于重复传输PBCH;
控制单元173用于控制所述发送单元将重复传输的PBCH在子帧0和/或子帧5中映射;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
其中,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l
取值的全部值或者部分值:
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目
或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
更具体的,基站可以根据实际需求将重复传输的PBCH映射在根据图2至图16所示的实施例中的任意一种资源元素中。更详细的描述,可以参考前述方法实施例的描述,不多赘述。
在硬件实现上,以上发送单元171可以为发射机或收发机,以上接收单元可以为接收机或收发机,且该发送单元和接收单元可以集成在一起构成收发单元,对应于硬件实现为收发机。以上控制单元173可以以硬件形式内嵌于或独立于基站的处理器中,也可以以软件形式存储于基站的存储器中,以便于处理器调用执行以上各个模块对应的操作。该处理器可以为中央处理单元(CPU)、微处理器、单片机等。
请参考图18,其为本发明实施例所提供的一种基站的结构示意图。如图所示,该基站包括发射机182、接收机181、存储器183以及分别与发射机182、接收机181和存储器183连接的处理器184。当然,基站还可以包括天线、基带处理部件、中射频处理部件、输入输出装置等通用部件,本发明实施例在此不再任何限制。
其中,存储器中存储一组程序代码,且处理器184用于调用存储器183中存储的程序代码,用于执行以下操作:
通过发射机182向UE重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射;
所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:
方法1:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
对于正常循环前缀:
k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;
方法2:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法3:
对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;
m=0,1,2,3,4,5
对于正常循环前缀:k'=2,3,8,9,l=5,6;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:
k'=0,1,3,4,6,7,9,10,l=4,5;
对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;
方法4:
对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;
对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;
对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
更具体的,基站可以根据实际需求将重复传输的PBCH映射在根据图2至图16所示的实施例中的任意一种资源元素中。更详细的描述,可以参考前述方法实施例的描述,不多赘述。
专业人员应该还可以进一步意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个
特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块,或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式,对本发明的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施方式而已,并不用于限定本发明的保护范围,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (36)
- 一种物理广播信道PBCH重复传输的方法,其特征在于,所述方法包括:重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
- 如权利要求1所述的方法,其特征在于,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:方法1:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;对于正常循环前缀:k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;方法2:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个 时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法3:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法4:对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确 定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置 的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
- 如权利要求2所述的方法,其特征在于,所述重复传输的PBCH在子帧0内进行重复传输,所述子帧0是指用于PBCH重复传输的无线帧内的子帧0;所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中的,除子帧0中的资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;其中,一个子帧内第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal),通过(ktotal,ltotal)确定资源元素集合中资源元素的频率和时间位置,对于正常循环前缀:ltotal=l',l'+1,...,6 for ns mod 2=0 or ns=0;对于扩展循环前缀:ltotal=l',l'+1,...,5 for ns mod 2=0 or ns=0;对于正常循环前缀:ltotal=0,1,...,6 for ns mod 2=1 or ns=1;对于扩展循环前缀:ltotal=0,1,...,5 for ns mod 2=1 or ns=1。
- 如权利要求2所述的方法,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)中的L ×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的资源元素(k,l)中的P×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,其中,min是最小值函数,L,P,Q是偶数整数;其中,一个子帧第二个时隙内的资源元素集合(ka,la)通过如下的任意一个方法确定,ka是频域子载波的索引,la是OFDM符号的索引:方法1:对于正常循环前缀:la=2,3;对于扩展循环前缀:la=1,2;方法2;对于正常循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置1,2,3,6,7,8所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置1,2,3所配置的CSI-RS占用的资源元素。对于扩展循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,资源元 素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置16,17,18,19,20,21所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置16,17,18所配置的CSI-RS占用的资源元素。
- 如权利要求4所述的方法,其特征在于,所述子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射还不占用子帧5中的第二个时隙内的资源元素(kb,lb)中的min(R,24)×6个资源元素,其中,min是最小值函数,R是偶数整数;其中,一个子帧第二个时隙内的资源元素集合(kb,lb)通过如下的任意一个方法确定,kb是频域子载波的索引,lb是OFDM符号的索引:方法1:lb=1,3方法2:资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置20,21,22,23,24,25所配置的CSI-RS占用的资源元素;或,上述资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置20,21,22所配置的CSI-RS占用的资源元素。
- 如权利要求4或5所述的方法,其特征在于,所述L,P,Q,R的值是预先规定的值或信令配置的值。
- 如权利要求6所述的方法,其特征在于,所述重复传输的PBCH在子 帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)、不占用子帧5中的资源元素集合(k,l)、不占用子帧5中的第二个时隙内的资源元素集合(ka,la)、不占用子帧5中的第二个时隙内的资源元素集合(kb,lb);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素集合(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)、资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射。
- 如权利要求1-7任一项权利要求所述的方法,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)和子帧5中的资源元素(k,l);其中,若PBCH在子帧5中重复传输一次,所述PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素相同;若PBCH在子帧5中重复传输两次,一次PBCH重复传输的PBCH在子帧5中映射所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素位置相同,另一次PBCH重复传输的PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素位置相同。
- 如权利要求1-8任一项权利要求所述的方法,其特征在于,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)中的48个资源元素;所述重复传输的PBCH在子帧0中重复传输一次,所述重复传输的PBCH在子帧0和子帧5中重复一次,所述重复传输的PBCH在子帧5中重复一次;或者,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的48个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求1-8任一项所述的方法,其特征在于,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的所有资源元素;所述重复传输的PBCH在子帧0中重复传输一次,在子帧5中重复传输一次;或者所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且,所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素 (ka,la)中的所有资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求1-8所述的方法,其特征在于,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素以及子帧0中的资源元素(k,l);或,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复传输的的PBCH的映射不占用子帧5中的资源元素(k,l);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资 源元素外的资源元素上映射。
- 如权利要求1至11任一项所述的所述的方法,其特征在于,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求1-12任一项所述的方法,其特征在于,所述方法中系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la)、子帧5中的第二个时隙内的资源元素(kb,lb);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中及子帧5的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中:除子帧0中资源元素集合(k,l)、子帧5中资源元素集合集合(k,l)、子帧5中资源元素集合(ka,la)、子帧5中资源元素集合(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求2所述的方法,其特征在于,所述重复传输的PBCH在子帧0内进行重复传输,子帧0采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个资源元素,N是12的倍数;特别地,所述PBCH不占用子帧0中的第一个时隙内的或者第二个时隙内的符号4和符号5中的每个符号上的N/2个资源元素。
- 如权利要求2所述的方法,其特征在于,所述重复传输的PBCH在子帧0内和/或子帧5内进行重复传输,所述子帧0和/或子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,子帧5中的资源元素(k,l)中的P×6个资源元素,子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,min是最小值函数,其中,L,P,Q是偶数。
- 如权利要求2所述的方法,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,和重复传输的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素。L,P是偶数,L和P可以相同,也可以不同;或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求4所述的方法,其特征在于,所述方法中系统是时分双 工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个元素、不占用子帧5中的资源元素(k,l)中的M个元素、不占用子帧5中的第二个时隙内的资源元素(ka,la)中的K个元素。
- 一种基站,其特征在于,所述基站包括发送单元、接收单元、控制单元。发送单元用于重复传输PBCH;控制单元用于控制所述发送单元将重复传输的PBCH在子帧0和/或子帧5中映射;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
- 如权利要求18所述的基站,其特征在于,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:方法1:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;对于正常循环前缀:k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;方法2:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法3:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法4:对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8 时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
- 如权利要求19所述的基站,其特征在于,所述重复传输的PBCH在子帧0内进行重复传输,所述子帧0是指用于PBCH重复传输的无线帧内的子帧0;所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中的,除子帧0中的资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;其中,一个子帧内第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal),通过(ktotal,ltotal)确定资源元素集合中资源元素的频率和时间位置,对于正常循环前缀:ltotal=l',l'+1,...,6 for ns mod 2=0 or ns=0;对于扩展循环前缀:ltotal=l',l'+1,...,5 for ns mod 2=0 or ns=0;对于正常循环前缀:ltotal=0,1,...,6 for ns mod 2=1 or ns=1;对于扩展循环前缀:ltotal=0,1,...,5 for ns mod 2=1 or ns=1。
- 如权利要求19所述的基站,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)中的L×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的资源元素(k,l)中的P×6个资源元素,所述重复传输的PBCH映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,其中,min是最小值函数,L,P,Q是偶数整数;其中,一个子帧第二个时隙内的资源元素集合(ka,la)通过如下的任意一个方法确定,ka是频域子载波的索引,la是OFDM符号的索引:方法1:对于正常循环前缀:la=2,3;对于扩展循环前缀:la=1,2;方法2;对于正常循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置1,2,3,6,7,8,12,13,14,15,16,17所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置1,2,3,6,7,8所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置1,2,3所配置的CSI-RS占用的资源元素。对于扩展循环前缀,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS 天线端口数目是1时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置16,17,18,19,20,21,22,23,24,25,26,27所配置的CSI-RS占用的资源元素;或,资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置16,17,18,19,20,21所配置的CSI-RS占用的资源元素;或,上述资源元素(ka,la)是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置16,17,18所配置的CSI-RS占用的资源元素。
- 如权利要求21所述的基站,其特征在于,所述子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射还不占用子帧5中的第二个时隙内的资源元素(kb,lb)中的min(R,24)×6个资源元素,其中,min是最小值函数,R是偶数整数;其中,一个子帧第二个时隙内的资源元素集合(kb,lb)通过如下的任意一个方法确定,kb是频域子载波的索引,lb是OFDM符号的索引:方法1:lb=1,3方法2:资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置20,21,22,23,24,25,26,27,28,29,30,31所配置的CSI-RS占用的资源元素;或,资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置20,21,22,23,24,25所配置的CSI-RS占用的资源元素;或,上述资源元素(kb,lb)是当配置的CSI-RS数目或CSI-RS天线端口数目 是8时,CSI参考信号配置20,21,22所配置的CSI-RS占用的资源元素。
- 如权利要求21或22所述的基站,其特征在于,所述L,P,Q,R的值是预先规定的值或信令配置的值。
- 如权利要求23所述的基站,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素集合(k,l)、不占用子帧5中的资源元素集合(k,l)、不占用子帧5中的第二个时隙内的资源元素集合(ka,la)、不占用子帧5中的第二个时隙内的资源元素集合(kb,lb);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素集合(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射或传输;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(k,l)、资源元素(ka,la)、资源元素(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射。
- 如权利要求18-24任一项权利要求所述的基站,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀,所述子帧0和子帧5是指用于PBCH重复传输的无线帧内的子帧0和子帧5;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)和子帧5中的资源元素(k,l);其中,若PBCH在子帧5中重复传输一次,所述PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素相同;若PBCH在子帧5中重复传输两次,一次PBCH重复传输的PBCH在子帧5中映射所用的资源元素与子帧0中重复的PBCH映射或传输所用的资源元素位置相同,另一次PBCH重复传输的PBCH在子帧5中的映射所用的资源元素与子帧0中正常PBCH映射所用的资源元素位置相同。
- 如权利要求18-25任一项权利要求所述的基站,其特征在于,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、不占用子帧5中的资源元素(k,l)、和不占用子帧5中的第二个时隙内的资源元素(ka,la)中的48个资源元素;所述重复传输的PBCH在子帧0中重复传输一次,所述重复传输的PBCH在子帧0和子帧5中重复一次,所述重复传输的PBCH在子帧5中重复一次;或者,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上进行映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的48个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求18-25任一项所述的基站,其特征在于,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的所有资源元素;所述重复传输的PBCH在子帧0中重复传输一次,在子帧5中重复传输一次;或者所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal) 和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且,所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中除资源元素(ka,la)中的所有资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求18-25所述的基站,其特征在于,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素以及子帧0中的资源元素(k,l);或,所述重复传输的PBCH的映射不占用子帧5中的第二个时隙内的资源元素(ka,la)中的96个资源元素和重复传输的的PBCH的映射不占用子帧5中的资源元素(k,l);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;且所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资 源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)中的96个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求18至28任一项所述的所述的基站,其特征在于,所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射;及所述重复传输的PBCH在子帧5的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中,除资源元素(k,l)、资源元素(ka,la)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求18-29任一项所述的基站,其特征在于,所述系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用正常循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)、子帧5中的资源元素(k,l)、子帧5中的第二个时隙内的资源元素(ka,la)、子帧5中的第二个时隙内的资源元素(kb,lb);或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中及子帧5的第一个时隙内 资源元素集合(ktotal,ltotal)和第二个时隙内资源元素集合(ktotal,ltotal)中:除子帧0中资源元素集合(k,l)、子帧5中资源元素集合集合(k,l)、子帧5中资源元素集合(ka,la)、子帧5中资源元素集合(kb,lb)、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求19所述的基站,其特征在于,所述重复传输的PBCH在子帧0内进行重复传输,子帧0采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个资源元素,N是12的倍数;特别地,所述PBCH不占用子帧0中的第一个时隙内的或者第二个时隙内的符号4和符号5中的每个符号上的N/2个资源元素。
- 如权利要求19所述的基站,其特征在于,所述重复传输的PBCH在子帧0内和/或子帧5内进行重复传输,所述子帧0和/或子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,子帧5中的资源元素(k,l)中的P×6个资源元素,子帧5中的第二个时隙内的资源元素(ka,la)中的min(Q,24)×6个资源元素,min是最小值函数,其中,L,P,Q是偶数。
- 如权利要求19所述的基站,其特征在于,所述重复传输的PBCH在子帧0内和子帧5内进行重复,子帧0和子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的L×6个资源元素,和重复传输的PBCH映射或传输不占用子帧5中的资源元素(k,l)中的P×6个资源元素。L,P是偶数,L和P可以相同,也可以不同;或,所述重复传输的PBCH在子帧0的第一个时隙内资源元素(ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中及子帧5的第一个时隙内资源元素 (ktotal,ltotal)和第二个时隙内资源元素(ktotal,ltotal)中:除子帧0中资源元素(k,l)中的L×6个资源元素、子帧5中资源元素(k,l)中的P×6个资源元素、正常PBCH传输所用的资源元素、主同步信号和辅同步信号传输所用的资源元素、公共参考信号传输所用的资源元素外的资源元素上映射。
- 如权利要求31所述的基站,其特征在于,所述系统是时分双工系统,所述重复传输的PBCH在子帧0内和子帧5内进行重复传输,子帧0和子帧5采用扩展循环前缀;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l)中的N个元素、不占用子帧5中的资源元素(k,l)中的M个元素、不占用子帧5中的第二个时隙内的资源元素(ka,la)中的K个元素。
- 一种基站,其特征在于,所述基站包括发射机、接收机、存储器以及分别与发射机、接收机和存储器连接的处理器;其中,存储器中存储一组程序代码,且处理器用于调用存储器中存储的程序代码,用于执行以下操作:通过发射机向UE重复传输PBCH,其中重复传输的PBCH在子帧0和/或子帧5中映射;所述重复传输的PBCH的映射不占用子帧0中的资源元素(k,l),其中,k是频域子载波的索引,l是正交频分复用OFDM符号的索引,(k,l)确定资源元素的频率和时间位置,k,l是变量。
- 如权利要求35所述的基站,其特征在于,所述资源元素(k,l)的k,l取值等于下述任意一个方法计算出的k,l取值的全部值或者部分值:方法1:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;对于正常循环前缀:k'=2,3,8,9,14,15,20,21,26,27,32,33,38,39,44,45,50,51,56,57,62,63,68,69,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,66,67,69,70,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,12,14,15,17,18,20,21,23,24,26,27,29,30,32,33,35,36,38,39,41,42,44,45,47,48,50,51,53,54,56,57,59,60,62,63,65,66,68,69,71,l=4,5;方法2:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法3:对于频分双工或者频分半双工,(k,l)确定的资源元素是子帧中的第二个时隙内的资源元素;对于时分双工,(k,l)确定的资源元素是子帧中的第一个时隙内的资源元素;m=0,1,2,3,4,5对于正常循环前缀:k'=2,3,8,9,l=5,6;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工:k'=0,1,3,4,6,7,9,10,l=4,5;对于扩展循环前缀和时分双工:k'=0,2,3,5,6,8,9,11,l=4,5;方法4:对于正常循环前缀和频分双工,或者对于正常循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置4,9,18,19所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置4,9所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置4所配置的CSI-RS占用的资源元素;对于正常循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,5,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0所配置的CSI-RS占用的资源元素;对于扩展循环前缀和频分双工,或者对于扩展循环前缀和频分半双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置2,3,6,7,12,13,14,15所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置2,3,6,7所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置2,3所配置的CSI-RS占用的资源元素;对于扩展循环前缀和时分双工,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是1时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是2时,CSI参考信号配置0,1,4,5,8,9,10,11所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是4时,CSI参考信号配置0,1,4,5所配置的CSI-RS占用的资源元素;或,(k,l)确定的资源元素是当配置的CSI-RS数目或CSI-RS天线端口数目是8时,CSI参考信号配置0,1所配置的CSI-RS占用的资源元素。
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